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@ -4,11 +4,11 @@ description: A technique to produce compact software updates optimized for any o
keywords: updates, servicing, current, deployment, semi-annual channel, feature, quality, rings, insider, tools
ms.prod: w10
ms.mktglfcycl: manage
ms.sitesec: library
audience: itpro author: greg-lindsay
audience: itpro
itproauthor: jaimeo
author: jaimeo
ms.localizationpriority: medium
ms.author: greglin
ms.date: 10/18/2018
ms.author: jaimeo
ms.reviewer:
manager: laurawi
ms.topic: article
@ -16,7 +16,6 @@ ms.topic: article
# Windows Updates using forward and reverse differentials
Windows 10 monthly quality updates are cumulative, containing all previously
released fixes to ensure consistency and simplicity. For an operating system
platform like Windows 10, which stays in support for multiple years, the size of
@ -34,14 +33,9 @@ uses this technique.
The following general terms apply throughout this document:
- *Base version*: A major software release with significant changes, such as
Windows 10, version 1809 (Windows 10 Build 17763.1)
- *Revision*: Minor releases in between the major version releases, such as
KB4464330 (Windows 10 Build 17763.55)
- *Baseless Patch Storage Files (Baseless PSF)*: Patch storage files that
contain full binaries or files
- *Base version*: A major software release with significant changes, such as Windows 10, version 1809 (Windows 10 Build 17763.1)
- *Revision*: Minor releases in between the major version releases, such as KB4464330 (Windows 10 Build 17763.55)
- *Baseless Patch Storage Files (Baseless PSF)*: Patch storage files that contain full binaries or files
## Introduction
@ -52,7 +46,7 @@ its reverse differential back to the base version. Both forward and reverse
differentials are then packaged as an update and distributed to the endpoints
running the software to be updated. The update package contents can be symbolized as follows:
![Symbolic representation of update package contents. a box containing two expressions: delta sub zero transform to sub N, followed delta sub N transform to sub zero](images/PSF1.png)
![Symbolic representation of update package contents. A box containing two expressions: delta sub zero transform to sub N, followed delta sub N transform to sub zero](images/PSF1.png)
The endpoints that have the base version of the file (V<sub>0</sub>) hydrate the target
revision (V<sub>N</sub>) by applying a simple transformation:
@ -71,136 +65,50 @@ By using a common baseline, this technique produces a single update package with
numerous advantages:
- Compact in size
- Applicable to all baselines
- Simple to build
- Efficient to install
- Redistributable
Historically, download sizes of Windows 10 quality updates (Windows 10, version
1803 and older supported versions of Windows 10) are optimized by using express
download. Express download is optimized such that updating Windows 10 systems
will download the minimum number of bytes. This is achieved by generating
differentials for every updated file based on selected historical base revisions
of the same file + its base or RTM version.
Historically, download sizes of Windows 10 quality updates (Windows 10, version 1803 and older supported versions of Windows 10) are optimized by using express download. Express download is optimized such that updating Windows 10 systems will download the minimum number of bytes. This is achieved by generating differentials for every updated file based on selected historical base revisions of the same file + its base or RTM version.
For example, if the October monthly quality update has updated Notepad.exe,
differentials for Notepad.exe file changes from September to October, August to
October, July to October, June to October, and from the original feature release
to October are generated. All these differentials are stored in a Patch Storage
File (PSF, also referred to as “express download files”) and hosted or cached on
Windows Update or other update management or distribution servers (for example,
Windows Server Update Services (WSUS), System Center Configuration Manager, or a
non-Microsoft update management or distribution server that supports express
updates). A device leveraging express updates uses network protocol to determine
optimal differentials, then downloads only what is needed from the update
distribution endpoints.
For example, if the October monthly quality update has updated Notepad.exe, differentials for Notepad.exe file changes from September to October, August to October, July to October, June to October, and from the original feature release to October are generated. All these differentials are stored in a Patch Storage File (PSF, also referred to as “express download files”) and hosted or cached on Windows Update or other update management or distribution servers (for example, Windows Server Update Services (WSUS), System Center Configuration Manager, or a non-Microsoft update management or distribution server that supports express updates). A device leveraging express updates uses network protocol to determine optimal differentials, then downloads only what is needed from the update distribution endpoints.
The flipside of express download is that the size of PSF files can be very large
depending on the number of historical baselines against which differentials were
calculated. Downloading and caching large PSF files to on-premises or remote
update distribution servers is problematic for most organizations, hence they
are unable to leverage express updates to keep their fleet of devices running
Windows 10 up to date. Secondly, due to the complexity of generating
differentials and size of the express files that need to be cached on update
distribution servers, it is only feasible to generate express download files for
the most common baselines, thus express updates are only applicable to selected
baselines. Finally, calculation of optimal differentials is expensive in terms
of system memory utilization, especially for low-cost systems, impacting their
ability to download and apply an update seamlessly.
The flip side of express download is that the size of PSF files can be very large depending on the number of historical baselines against which differentials were calculated. Downloading and caching large PSF files to on-premises or remote update distribution servers is problematic for most organizations, hence they are unable to leverage express updates to keep their fleet of devices running Windows 10 up to date. Secondly, due to the complexity of generating differentials and size of the express files that need to be cached on update distribution servers, it is only feasible to generate express download files for the most common baselines, thus express updates are only applicable to selected baselines. Finally, calculation of optimal differentials is expensive in terms of system memory utilization, especially for low-cost systems, impacting their ability to download and apply an update seamlessly.
In the following sections, we describe how Windows 10 quality updates will
leverage this technique based on forward and reverse differentials for newer
releases of Windows 10 and Windows Server to overcome the challenges with
express downloads.
In the following sections, we describe how Windows 10 quality updates will leverage this technique based on forward and reverse differentials for newer releases of Windows 10 and Windows Server to overcome the challenges with express downloads.
## High-level Design
### Update packaging
Windows 10 quality update packages will contain forward differentials from
quality update RTM baselines (∆RTM→N) and reverse differentials back to RTM
(∆N→RTM) for each file that has changed since RTM. By using the RTM version as
the baseline, we ensure that all devices will have an identical payload. Update
package metadata, content manifests, and forward and reverse differentials will
be packaged into a cabinet file (.cab). This .cab file, and the applicability
logic, will also be wrapped in Microsoft Standalone Update (.msu) format.
Windows 10 quality update packages will contain forward differentials from quality update RTM baselines (∆RTM→N) and reverse differentials back to RTM (∆N→RTM) for each file that has changed since RTM. By using the RTM version as the baseline, we ensure that all devices will have an identical payload. Update package metadata, content manifests, and forward and reverse differentials will be packaged into a cabinet file (.cab). This .cab file, and the applicability logic, will also be wrapped in Microsoft Standalone Update (.msu) format.
There can be cases where new files are added to the system during servicing.
These files will not have RTM baselines, thus forward and reverse differentials
cannot be used. In these scenarios, null differentials will be used to handle
servicing. Null differentials are the slightly compressed and optimized version
of the full binaries. Update packages can have either
forward or reverse differentials, or null differential of any given binary in
them. The following image symbolizes the content of a Windows 10 quality update installer:
There can be cases where new files are added to the system during servicing. These files will not have RTM baselines, thus forward and reverse differentials cannot be used. In these scenarios, null differentials will be used to handle servicing. Null differentials are the slightly compressed and optimized version of the full binaries. Update packages can have either forward or reverse differentials, or null differential of any given binary in them. The following image symbolizes the content of a Windows 10 quality update installer:
![Outer box labeled .msu containing two sub-boxes: 1) Applicability Logic, 2) box labeled .cab containg four sub-boxes: 1) update metadata, 2) content manifests, 3) delta sub RTM transform to sub N (file 1, file2, etc.), and 4) delta sub N transform to RTM (file 1, file 2, etc.)](images/PSF4.png)
![Outer box labeled .msu containing two sub-boxes: 1) Applicability Logic, 2) box labeled .cab containing four sub-boxes: 1) update metadata, 2) content manifests, 3) delta sub RTM transform to sub N (file 1, file2, etc.), and 4) delta sub N transform to RTM (file 1, file 2, etc.)](images/PSF4.png)
### Hydration and installation
Once the usual applicability checks are performed on the update package and are
determined to be applicable, the Windows component servicing infrastructure will
hydrate the full files during pre-installation and then proceed with the usual
installation process.
Once the usual applicability checks are performed on the update package and are determined to be applicable, the Windows component servicing infrastructure will hydrate the full files during pre-installation and then proceed with the usual installation process.
Below is a high-level sequence of activities that the component servicing
infrastructure will run in a transaction to complete installation of the update:
Below is a high-level sequence of activities that the component servicing infrastructure will run in a transaction to complete installation of the update:
- Identify all files that are required to install the update.
- Hydrate each of necessary files using current version (V<sub>N</sub>) of the file,
reverse differential (V<sub>N</sub>--->RTM) of the file back to quality update RTM/base
version and forward differential (V<sub>RTM</sub>--->R) from feature update RTM/base
version to the target version. Also, use null differential hydration to
hydrate null compressed files.
- Stage the hydrated files (full file), forward differentials (under f
folder) and reverse differentials (under r folder) or null compressed
files (under n folder) in the component store (%windir%\\WinSxS folder).
- Hydrate each of necessary files using current version (V<sub>N</sub>) of the file, reverse differential (V<sub>N</sub>--->RTM) of the file back to quality update RTM/base version and forward differential (V<sub>RTM</sub>--->R) from feature update RTM/base version to the target version. Also, use null differential hydration to hydrate null compressed files.
- Stage the hydrated files (full file), forward differentials (under f folder) and reverse differentials (under r folder) or null compressed files (under n folder) in the component store (%windir%\\WinSxS folder).
- Resolve any dependencies and install components.
- Clean up older state (V<sub>N-1</sub>); the previous state V<sub>N</sub> is retained for
uninstallation and restoration or repair.
- Clean up older state (V<sub>N-1</sub>); the previous state V<sub>N</sub> is retained for uninstallation and restoration or repair.
### **Resilient Hydration**
To ensure resiliency against component store corruption or missing files that
could occur due to susceptibility of certain types of hardware to file system
corruption, a corruption repair service has been traditionally used to recover
the component store automatically (“automatic corruption repair”) or on demand
(“manual corruption repair”) using an online or local repair source. This
service will continue to offer the ability to repair and recover content for
To ensure resiliency against component store corruption or missing files that could occur due to susceptibility of certain types of hardware to file system corruption, a corruption repair service has been traditionally used to recover the component store automatically (“automatic corruption repair”) or on demand (“manual corruption repair”) using an online or local repair source. This service will continue to offer the ability to repair and recover content for
hydration and successfully install an update, if needed.
When corruption is detected during update operations, automatic corruption
repair will start as usual and use the Baseless Patch Storage File published to
Windows Update for each update to fix corrupted manifests, binary differentials,
or hydrated or full files. Baseless patch storage files will contain reverse and
forward differentials and full files for each updated component. Integrity of
the repair files will be hash verified.
When corruption is detected during update operations, automatic corruption repair will start as usual and use the Baseless Patch Storage File published to Windows Update for each update to fix corrupted manifests, binary differentials, or hydrated or full files. Baseless patch storage files will contain reverse and forward differentials and full files for each updated component. Integrity of the repair files will be hash verified.
Corruption repair will use the component manifest to detect missing files and
get hashes for corruption detection. During update installation, new registry
flags for each differential staged on the machine will be set. When automatic
corruption repair runs, it will scan hydrated files using the manifest and
differential files using the flags. If the differential cannot be found or
verified, it will be added to the list of corruptions to repair.
Corruption repair will use the component manifest to detect missing files and get hashes for corruption detection. During update installation, new registry flags for each differential staged on the machine will be set. When automatic corruption repair runs, it will scan hydrated files using the manifest and differential files using the flags. If the differential cannot be found or verified, it will be added to the list of corruptions to repair.
### Lazy automatic corruption repair
“Lazy automatic corruption repair” runs during update operations to detect
corrupted binaries and differentials. While applying an update, if hydration of
any file fails, "lazy" automatic corruption repair automatically starts,
identifies the corrupted binary or differential file, and then adds it to the
corruption list. Later, the update operation continues as far as it can go, so
that "lazy" automatic corruption repair can collect as many corrupted files to fix
as possible. At the end of the hydration section, the update fails, and
automatic corruption repair starts. Automatic corruption repair runs as usual
and at the end of its operation, adds the corruption list generated by "lazy"
automatic corruption repair on top of the new list to repair. Automatic
corruption repair then repairs the files on the corruption list and installation
of the update will succeed on the next attempt.
“Lazy automatic corruption repair” runs during update operations to detect corrupted binaries and differentials. While applying an update, if hydration of any file fails, "lazy" automatic corruption repair automatically starts, identifies the corrupted binary or differential file, and then adds it to the corruption list. Later, the update operation continues as far as it can go, so that "lazy" automatic corruption repair can collect as many corrupted files to fix as possible. At the end of the hydration section, the update fails, and automatic corruption repair starts. Automatic corruption repair runs as usual and at the end of its operation, adds the corruption list generated by "lazy" automatic corruption repair on top of the new list to repair. Automatic corruption repair then repairs the files on the corruption list and installation of the update will succeed on the next attempt.

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@ -1,14 +1,15 @@
---
title: Introduction to the Windows Insider Program for Business
description: Introduction to the Windows Insider Program for Business and why IT Pros should join it
description: Introduction to the Windows Insider Program for Business and why IT Pros should join
keywords: updates, servicing, current, deployment, semi-annual channel, feature, quality, rings, insider, WiP4Biz, enterprise, rings, flight
ms.prod: w10
ms.mktglfcycl: manage
ms.sitesec: library
audience: itpro author: greg-lindsay
ms.localizationpriority: medium
ms.audience: itpro author: greg-lindsay
ms.date: 03/01/2018
audience: itpro
itproauthor: jaimeo
author: jaimeo
ms.localizationprioauthor: jaimeo
ms.audience: itpro
author: jaimeo
ms.reviewer:
manager: laurawi
ms.topic: article
@ -16,7 +17,6 @@ ms.topic: article
# Introduction to the Windows Insider Program for Business
**Applies to**
- Windows 10
@ -38,11 +38,9 @@ Microsoft recommends that all organizations have at least a few devices enrolled
The Windows Insider Program doesn't replace Semi-Annual Channel deployments in an organization. Rather, it provides IT Pros and other interested parties with pre-release Windows builds that they can test and ultimately provide feedback on to Microsoft.
[![Illustration showing the Windows Insider PreviewFast Ring for exploration, the Slow Ring for validation, the Semi-Annual Channel Targeted ring for Pilot deployment, and the Semi-Annual Channel for broad deployment](images/WIP4Biz_deployment.png)](images/WIP4Biz_deployment.png)<br>
Windows 10 Insider Preview builds enable organizations to prepare sooner for Windows Semi-Annual releases and reduce the overall validation effort required with traditional deployments.
## Explore new Windows 10 features in Insider Previews
Windows 10 Insider Preview builds offer organizations a valuable and exciting opportunity to evaluate new Windows features well before general release. Whats more, by providing feedback to Microsoft on these features, you and other Insiders in your organization can help shape Windows for your specific business needs. Heres how to get the most out of your feature exploration:
@ -62,8 +60,6 @@ Along with exploring new features, you also have the option to validate your app
- Deploy Windows 10 Semi-Annual releases faster and more confidently
- Maximize the 18-month support Window that comes with each Semi-Annual release.
|Objective |Feature exploration|
|---------|---------|
|Release channel |**Slow Ring:** Insider Preview builds in the Slow Ring are released approximately once a month. They are more stable than Fast Ring releases, making them better suited for validation purposes. Slow Ring releases can be run on either secondary or primary production devices by skilled users.|
@ -71,4 +67,3 @@ Along with exploring new features, you also have the option to validate your app
|Tasks | Application and infrastructure validation: Before running an Insider Preview build, check our [Windows Insider blog](https://blogs.windows.com/windowsexperience/tag/windows-insider-program/#k3WWwxKCTWHCO82H.97) and [Windows Insider Tech Community](https://techcommunity.microsoft.com/t5/Windows-Insider-Program/bd-p/WindowsInsiderProgram) pages for updates on current issues and fixes. |
|Feedback | Application and infrastructure validation:Provide feedback in the Feedback Hub app and also inform app vendors of any significant issues. |
|Guidance | Application and infrastructure validation:<br>- [Use Upgrade Readiness to create an app inventory and identify mission-critical apps](https://technet.microsoft.com/itpro/windows/deploy/upgrade-readiness-identify-apps)<br>- [Use Device Health to identify problem devices and device drivers](https://docs.microsoft.com/windows/deployment/update/device-health-monitor)<br> - [Windows 10 application compatibility](https://technet.microsoft.com/windows/mt703793)|

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@ -3,10 +3,10 @@ title: Change history for Update Windows 10 (Windows 10)
description: This topic lists new and updated topics in the Update Windows 10 documentation for Windows 10 and Windows 10 Mobile.
ms.prod: w10
ms.mktglfcycl: manage
ms.sitesec: library
audience: itpro author: greg-lindsay
ms.author: greglin
ms.date: 09/18/2018
audience: itpro
itproauthor: jaimeo
author: jaimeo
ms.author: jaimeo
ms.reviewer:
manager: laurawi
ms.topic: article

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@ -4,7 +4,6 @@ description: Configure Device Health in Azure Monitor to monitor health (such as
keywords: Device Health, oms, operations management suite, prerequisites, requirements, monitoring, crash, drivers, azure
ms.prod: w10
ms.mktglfcycl: deploy
ms.sitesec: library
ms.reviewer:
manager: laurawi
ms.pagetype: deploy

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@ -6,7 +6,7 @@ description: You can use Device Health in Azure Portal to monitor the frequency
keywords: oms, operations management suite, wdav, health, log analytics
ms.prod: w10
ms.mktglfcycl: deploy
ms.sitesec: library
ms.localizationpriority: medium
ms.pagetype: deploy
audience: itpro

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@ -6,7 +6,7 @@ description: Explains how to begin using Device Health.
ms.prod: w10
ms.mktglfcycl: deploy
keywords: oms, operations management suite, wdav, health, log analytics
ms.sitesec: library
ms.pagetype: deploy
author: jaimeo
ms.author: jaimeo

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@ -3,11 +3,11 @@ title: Best practices for feature updates - conclusion
description: Final thoughts about how to deploy feature updates
ms.prod: w10
ms.mktglfcycl: manage
ms.sitesec: library
audience: itpro author: greg-lindsay
audience: itpro
itproauthor: jaimeo
author: jaimeo
ms.localizationpriority: medium
ms.author: greglin
ms.date: 07/09/2018
ms.author: jaimeo
ms.reviewer:
manager: laurawi
ms.collection: M365-modern-desktop

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@ -3,10 +3,11 @@ title: Best practices - deploy feature updates during maintenance windows
description: Learn how to deploy feature updates during a maintenance window
ms.prod: w10
ms.mktglfcycl: manage
ms.sitesec: library
audience: itpro author: greg-lindsay
audience: itpro
itproauthor: jaimeo
author: jaimeo
ms.localizationpriority: medium
ms.author: greglin
ms.author: jaimeo
ms.date: 07/09/2018
ms.reviewer:
manager: laurawi

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@ -3,10 +3,11 @@ title: Best practices and recommendations for deploying Windows 10 Feature updat
description: Learn how to deploy feature updates to your mission critical devices
ms.prod: w10
ms.mktglfcycl: manage
ms.sitesec: library
audience: itpro author: greg-lindsay
audience: itpro
itproauthor: jaimeo
author: jaimeo
ms.localizationpriority: medium
ms.author: greglin
ms.author: jaimeo
ms.date: 07/10/2018
ms.reviewer:
manager: laurawi

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@ -3,11 +3,10 @@ title: Best practices - deploy feature updates for user-initiated installations
description: Learn how to manually deploy feature updates
ms.prod: w10
ms.mktglfcycl: manage
ms.sitesec: library
audience: itpro
author: greg-lindsay
author: jaimeo
ms.localizationpriority: medium
ms.author: greglin
ms.author: jaimeo
ms.date: 07/10/2018
ms.reviewer:
manager: laurawi

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@ -3,11 +3,11 @@ title: Windows 10 - How to make FoD and language packs available when you're usi
description: Learn how to make FoD and language packs available when you're using WSUS/SCCM
ms.prod: w10
ms.mktglfcycl: manage
ms.sitesec: library
ms.pagetype: article
ms.author: greglin
ms.author: jaimeo
audience: itpro
author: greg-lindsay
author: jaimeo
ms.localizationpriority: medium
ms.date: 03/13/2019
ms.reviewer:

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@ -3,11 +3,11 @@ title: How Windows Update works
description: Learn how Windows Update works, including architecture and troubleshooting
ms.prod: w10
ms.mktglfcycl:
ms.sitesec: library
audience: itpro author: greg-lindsay
audience: itpro
itproauthor: jaimeo
author: jaimeo
ms.localizationpriority: medium
ms.author: greglin
ms.date: 09/18/2018
ms.author: jaimeo
ms.reviewer:
manager: laurawi
ms.collection: M365-modern-desktop

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@ -3,8 +3,7 @@ title: Update Windows 10 in enterprise deployments (Windows 10)
description: Windows as a service provides an all-new way to think about building, deploying, and servicing Windows 10.
ms.prod: w10
ms.mktglfcycl: manage
ms.sitesec: library
author: Jaimeo
author: jaimeo
manager: laurawi
ms.localizationpriority: high
ms.author: jaimeo

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@ -1,11 +1,13 @@
---
title: Olympia Corp enrollment guidelines
description: Olympia Corp enrollment guidelines
ms.author: greglin
ms.author: jaimeo
ms.topic: article
ms.prod: w10
ms.technology: windows
audience: itpro author: greg-lindsay
audience: itpro
itproauthor: jaimeo
author: jaimeo
ms.reviewer:
manager: laurawi
keywords: insider, trial, enterprise, lab, corporation, test

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@ -3,10 +3,11 @@ title: Servicing stack updates (Windows 10)
description: Servicing stack updates improve the code that installs the other updates.
ms.prod: w10
ms.mktglfcycl: manage
ms.sitesec: library
audience: itpro author: greg-lindsay
audience: itpro
itproauthor: jaimeo
author: jaimeo
ms.localizationpriority: medium
ms.author: greglin
ms.author: jaimeo
ms.date: 11/29/2018
ms.reviewer:
manager: laurawi

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@ -5,7 +5,6 @@ manager: laurawi
description: new Delivery Optimization data displayed in Update Compliance
ms.prod: w10
ms.mktglfcycl: deploy
ms.sitesec: library
ms.pagetype: deploy
audience: itpro
author: jaimeo

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@ -5,10 +5,11 @@ manager: laurawi
description: an overview of the Feature Update Status report
ms.prod: w10
ms.mktglfcycl: deploy
ms.sitesec: library
ms.pagetype: deploy
audience: itpro author: greg-lindsay
ms.author: greglin
audience: itpro
itproauthor: jaimeo
author: jaimeo
ms.author: jaimeo
ms.collection: M365-analytics
ms.topic: article
---

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@ -6,7 +6,6 @@ description: Configure Update Compliance in Azure Portal to see the status of up
keywords: update compliance, oms, operations management suite, prerequisites, requirements, updates, upgrades, antivirus, antimalware, signature, log analytics, wdav
ms.prod: w10
ms.mktglfcycl: deploy
ms.sitesec: library
ms.pagetype: deploy
audience: itpro
author: jaimeo

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@ -6,7 +6,6 @@ description: You can use Update Compliance in Azure Portal to monitor the progre
keywords: oms, operations management suite, wdav, updates, upgrades, antivirus, antimalware, signature, log analytics
ms.prod: w10
ms.mktglfcycl: deploy
ms.sitesec: library
ms.pagetype: deploy
audience: itpro
author: jaimeo

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@ -5,10 +5,11 @@ manager: laurawi
description: an overview of the Update Compliance Need Attention! report
ms.prod: w10
ms.mktglfcycl: deploy
ms.sitesec: library
ms.pagetype: deploy
audience: itpro author: greg-lindsay
ms.author: greglin
audience: itpro
itproauthor: jaimeo
author: jaimeo
ms.author: jaimeo
ms.collection: M365-analytics
ms.topic: article
---

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@ -5,10 +5,11 @@ manager: laurawi
description: an overview of Update Compliance Perspectives
ms.prod: w10
ms.mktglfcycl: deploy
ms.sitesec: library
ms.pagetype: deploy
audience: itpro author: greg-lindsay
ms.author: greglin
audience: itpro
itproauthor: jaimeo
author: jaimeo
ms.author: jaimeo
ms.collection: M365-analytics
ms.topic: article
---

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@ -5,7 +5,6 @@ manager: laurawi
description: an overview of the Security Update Status report
ms.prod: w10
ms.mktglfcycl: deploy
ms.sitesec: library
ms.pagetype: deploy
author: jaimeo
ms.author: jaimeo

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@ -6,7 +6,6 @@ description: Explains how to begin using Update Compliance.
keywords: oms, operations management suite, wdav, updates, upgrades, antivirus, antimalware, signature, log analytics
ms.prod: w10
ms.mktglfcycl: deploy
ms.sitesec: library
ms.pagetype: deploy
audience: itpro
author: jaimeo

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@ -5,10 +5,11 @@ manager: laurawi
description: an overview of the Windows Defender AV Status report
ms.prod: w10
ms.mktglfcycl: deploy
ms.sitesec: library
ms.pagetype: deploy
audience: itpro author: greg-lindsay
ms.author: greglin
audience: itpro
itproauthor: jaimeo
author: jaimeo
ms.author: jaimeo
ms.collection: M365-analytics
ms.topic: article
---

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@ -3,11 +3,9 @@ title: Configure BranchCache for Windows 10 updates (Windows 10)
description: Use BranchCache to optimize network bandwidth during update deployment.
ms.prod: w10
ms.mktglfcycl: manage
ms.sitesec: library
author: greg-lindsay
author: jaimeo
ms.localizationpriority: medium
ms.author: greglin
ms.date: 07/27/2017
ms.author: jaimeo
ms.reviewer:
manager: laurawi
ms.topic: article

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@ -5,7 +5,7 @@ manager: laurawi
description: You can use Group Policy or your mobile device management (MDM) service to configure Windows Update for Business settings for your devices.
ms.prod: w10
ms.mktglfcycl: deploy
ms.sitesec: library
audience: itpro
author: jaimeo
ms.localizationpriority: medium

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@ -6,11 +6,11 @@ description: Reference of all Delivery Optimization settings and descriptions of
keywords: oms, operations management suite, wdav, updates, downloads, log analytics
ms.prod: w10
ms.mktglfcycl: deploy
ms.sitesec: library
audience: itpro
author: greg-lindsay
author: jaimeo
ms.localizationpriority: medium
ms.author: greglin
ms.author: jaimeo
ms.collection: M365-modern-desktop
ms.topic: article
---

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@ -6,7 +6,7 @@ description: Delivery Optimization is a new peer-to-peer distribution method in
keywords: oms, operations management suite, wdav, updates, downloads, log analytics
ms.prod: w10
ms.mktglfcycl: deploy
ms.sitesec: library
audience: itpro
author: jaimeo
ms.localizationpriority: medium

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@ -6,7 +6,7 @@ description: Delivery Optimization is a peer-to-peer distribution method in Wind
keywords: oms, operations management suite, wdav, updates, downloads, log analytics
ms.prod: w10
ms.mktglfcycl: deploy
ms.sitesec: library
audience: itpro
author: jaimeo
ms.localizationpriority: medium

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@ -3,7 +3,6 @@ title: Build deployment rings for Windows 10 updates (Windows 10)
description: Deployment rings in Windows 10 are similar to the deployment groups most organizations constructed for previous major revision upgrades.
ms.prod: w10
ms.mktglfcycl: manage
ms.sitesec: library
author: jaimeo
ms.localizationpriority: medium
ms.author: jaimeo

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@ -3,10 +3,9 @@ title: Integrate Windows Update for Business with management solutions (Windows
description: Use Windows Update for Business deployments with management tools such as Windows Server Update Services (WSUS) and System Center Configuration Manager.
ms.prod: w10
ms.mktglfcycl: manage
ms.sitesec: library
author: greg-lindsay
author: jaimeo
ms.localizationpriority: medium
ms.author: greglin
ms.author: jaimeo
ms.date: 07/27/2017
ms.reviewer:
manager: laurawi

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@ -3,7 +3,6 @@ title: Deploy Windows 10 updates using System Center Configuration Manager (Wind
description: System Center Configuration Manager provides maximum control over quality and feature updates for Windows 10.
ms.prod: w10
ms.mktglfcycl: manage
ms.sitesec: library
author: jaimeo
ms.localizationpriority: medium
ms.author: jaimeo

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@ -3,7 +3,6 @@ title: Deploy Windows 10 updates using Windows Server Update Services (Windows 1
description: WSUS allows companies to defer, selectively approve, choose when delivered, and determine which devices receive updates.
ms.prod: w10
ms.mktglfcycl: manage
ms.sitesec: library
author: jaimeo
ms.localizationpriority: medium
ms.author: jaimeo

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@ -5,7 +5,6 @@ manager: laurawi
description: Windows Update for Business lets you manage when devices received updates from Windows Update.
ms.prod: w10
ms.mktglfcycl: manage
ms.sitesec: library
author: jaimeo
ms.localizationpriority: medium
ms.author: jaimeo

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@ -3,7 +3,6 @@ title: Deploy updates for Windows 10 Mobile Enterprise and Windows 10 IoT Mobile
description: tbd
ms.prod: w10
ms.mktglfcycl: manage
ms.sitesec: library
author: jaimeo
ms.localizationpriority: medium
ms.author: jaimeo

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@ -3,8 +3,10 @@ title: Windows as a service
ms.prod: w10
ms.topic: article
ms.manager: elizapo
audience: itpro author: greg-lindsay
ms.author: greglin
audience: itpro
itproauthor: jaimeo
author: jaimeo
ms.author: jaimeo
ms.date: 12/19/2018
ms.reviewer:
manager: laurawi

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@ -3,7 +3,6 @@ title: Optimize update delivery for Windows 10 updates (Windows 10)
description: Two methods of peer-to-peer content distribution are available in Windows 10, Delivery Optimization and BranchCache.
ms.prod: w10
ms.mktglfcycl: manage
ms.sitesec: library
author: jaimeo
ms.localizationpriority: medium
ms.author: jaimeo

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@ -4,7 +4,6 @@ description: In Windows 10, Microsoft has streamlined servicing to make operatin
keywords: updates, servicing, current, deployment, semi-annual channel, feature, quality, rings, insider, tools
ms.prod: w10
ms.mktglfcycl: manage
ms.sitesec: library
author: jaimeo
ms.localizationpriority: medium
ms.author: jaimeo

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@ -4,7 +4,6 @@ description: In Windows 10, Microsoft has streamlined servicing to make operatin
keywords: updates, servicing, current, deployment, semi-annual channel, feature, quality, rings, insider, tools
ms.prod: w10
ms.mktglfcycl: manage
ms.sitesec: library
author: jaimeo
ms.localizationpriority: medium
ms.author: jaimeo

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@ -3,7 +3,7 @@ title: Manage device restarts after updates (Windows 10)
description: tbd
ms.prod: w10
ms.mktglfcycl: deploy
ms.sitesec: library
author: jaimeo
ms.localizationpriority: medium
ms.author: jaimeo

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@ -3,7 +3,7 @@ title: Assign devices to servicing channels for Windows 10 updates (Windows 10)
description: tbd
ms.prod: w10
ms.mktglfcycl: deploy
ms.sitesec: library
author: jaimeo
ms.localizationpriority: medium
ms.author: jaimeo

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@ -6,12 +6,11 @@ description: Learn the differences between servicing Windows 10 and servicing ol
keywords: updates, servicing, current, deployment, semi-annual channel, feature, quality, rings, insider, tools
ms.prod: w10
ms.mktglfcycl: manage
ms.sitesec: library
audience: itpro
author: greg-lindsay
author: jaimeo
ms.localizationpriority: medium
ms.audience: itpro
author: greg-lindsay
author: jaimeo
ms.topic: article
ms.collection: M365-modern-desktop
---

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@ -3,7 +3,6 @@ title: Prepare servicing strategy for Windows 10 updates (Windows 10)
description: A strong Windows 10 deployment strategy begins with establishing a simple, repeatable process for testing and deploying each feature update.
ms.prod: w10
ms.mktglfcycl: manage
ms.sitesec: library
author: jaimeo
ms.localizationpriority: medium
ms.author: jaimeo

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@ -3,7 +3,7 @@ title: Manage additional Windows Update settings (Windows 10)
description: Additional settings to control the behavior of Windows Update (WU) in Windows 10
ms.prod: w10
ms.mktglfcycl: deploy
ms.sitesec: library
audience: itpro
author: jaimeo
ms.localizationpriority: medium

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@ -3,7 +3,6 @@ title: Walkthrough use Group Policy to configure Windows Update for Business - W
description: Configure Windows Update for Business settings using Group Policy.
ms.prod: w10
ms.mktglfcycl: manage
ms.sitesec: library
author: jaimeo
ms.localizationpriority: medium
ms.author: jaimeo

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@ -3,12 +3,11 @@ title: Walkthrough use Intune to configure Windows Update for Business (Windows
description: Configure Windows Update for Business settings using Microsoft Intune.
ms.prod: w10
ms.mktglfcycl: manage
ms.sitesec: library
audience: itpro
author: greg-lindsay
author: jaimeo
ms.localizationpriority: medium
ms.audience: itpro
author: greg-lindsay
author: jaimeo
ms.date: 07/27/2017
ms.reviewer:
manager: laurawi

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@ -6,7 +6,6 @@ description: Frequently asked questions about Windows Analytics and steps to tak
keywords: windows analytics, oms, operations management suite, prerequisites, requirements, updates, upgrades, log analytics, health, FAQ, problems, troubleshooting, error
ms.prod: w10
ms.mktglfcycl: deploy
ms.sitesec: library
ms.pagetype: deploy
audience: itpro
author: jaimeo

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@ -6,7 +6,6 @@ description: Use the Azure Portal to add and configure Windows Analytics solutio
keywords: Device Health, oms, Azure, portal, operations management suite, add, manage, configure, Upgrade Readiness, Update Compliance
ms.prod: w10
ms.mktglfcycl: deploy
ms.sitesec: library
ms.pagetype: deploy
audience: itpro
author: jaimeo

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@ -6,7 +6,6 @@ description: Enroll devices to enable use of Update Compliance, Upgrade Readines
keywords: windows analytics, oms, operations management suite, prerequisites, requirements, updates, upgrades, log analytics, health, azure portal
ms.prod: w10
ms.mktglfcycl: deploy
ms.sitesec: library
ms.pagetype: deploy
author: jaimeo
ms.author: jaimeo

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@ -6,7 +6,6 @@ description: Introduction and overview of Windows Analytics
keywords: Device Health, Upgrade Readiness, Update Compliance, oms, operations management suite, prerequisites, requirements, monitoring, crash, drivers
ms.prod: w10
ms.mktglfcycl: deploy
ms.sitesec: library
ms.pagetype: deploy
audience: itpro
author: jaimeo

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@ -6,7 +6,6 @@ description: How Windows Analytics uses data
keywords: windows analytics, oms, privacy, data, diagnostic, operations management suite, prerequisites, requirements, updates, upgrades, log analytics, health, FAQ, problems, troubleshooting, error
ms.prod: w10
ms.mktglfcycl: deploy
ms.sitesec: library
ms.pagetype: deploy
audience: itpro
author: jaimeo

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@ -4,9 +4,11 @@ ms.prod: windows-10
layout: LandingPage
ms.topic: landing-page
ms.manager: elizapo
audience: itpro author: greg-lindsay
ms.audience: itpro author: greg-lindsay
ms.date: 01/24/2019
audience: itpro
itproauthor: jaimeo
author: jaimeo
ms.audience: itpro
author: jaimeo
ms.reviewer:
manager: laurawi
ms.localizationpriority: high

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@ -3,10 +3,12 @@ title: Windows Update error code list by component
description: Reference information for Windows Update error codes
ms.prod: w10
ms.mktglfcycl:
ms.sitesec: library
audience: itpro author: greg-lindsay
ms.localizationpriority: medium
ms.audience: itpro author: greg-lindsay
audience: itpro
itproauthor: jaimeo
author: jaimeo
ms.localizationprioauthor: jaimeo
ms.audience: itpro
author: jaimeo
ms.date: 09/18/2018
ms.reviewer:
manager: laurawi

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@ -3,10 +3,12 @@ title: Windows Update common errors and mitigation
description: Learn about some common issues you might experience with Windows Update
ms.prod: w10
ms.mktglfcycl:
ms.sitesec: library
audience: itpro author: greg-lindsay
ms.localizationpriority: medium
ms.audience: itpro author: greg-lindsay
audience: itpro
itproauthor: jaimeo
author: jaimeo
ms.localizationprioauthor: jaimeo
ms.audience: itpro
author: jaimeo
ms.date: 09/18/2018
ms.reviewer:
manager: laurawi

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@ -3,10 +3,12 @@ title: Windows Update log files
description: Learn about the Windows Update log files
ms.prod: w10
ms.mktglfcycl:
ms.sitesec: library
audience: itpro author: greg-lindsay
ms.localizationpriority: medium
ms.audience: itpro author: greg-lindsay
audience: itpro
itproauthor: jaimeo
author: jaimeo
ms.localizationprioauthor: jaimeo
ms.audience: itpro
author: jaimeo
ms.date: 09/18/2018
ms.reviewer:
manager: laurawi

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@ -3,10 +3,12 @@ title: Get started with Windows Update
description: Learn how Windows Update works, including architecture and troubleshooting
ms.prod: w10
ms.mktglfcycl:
ms.sitesec: library
audience: itpro author: greg-lindsay
ms.localizationpriority: medium
ms.audience: itpro author: greg-lindsay
audience: itpro
itproauthor: jaimeo
author: jaimeo
ms.localizationprioauthor: jaimeo
ms.audience: itpro
author: jaimeo
ms.date: 09/18/2018
ms.reviewer:
manager: laurawi

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@ -3,12 +3,12 @@ title: Windows Update - Additional resources
description: Additional resources for Windows Update
ms.prod: w10
ms.mktglfcycl:
ms.sitesec: library
audience: itpro
author: greg-lindsay
author: jaimeo
ms.localizationpriority: medium
ms.audience: itpro
author: greg-lindsay
author: jaimeo
ms.date: 09/18/2018
ms.reviewer:
manager: laurawi

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@ -3,10 +3,12 @@ title: Windows Update troubleshooting
description: Learn how to troubleshoot Windows Update
ms.prod: w10
ms.mktglfcycl:
ms.sitesec: library
audience: itpro author: greg-lindsay
ms.localizationpriority: medium
ms.audience: itpro author: greg-lindsay
audience: itpro
itproauthor: jaimeo
author: jaimeo
ms.localizationprioauthor: jaimeo
ms.audience: itpro
author: jaimeo
ms.date: 09/18/2018
ms.reviewer:
manager: laurawi

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@ -3,10 +3,12 @@ title: Setting up Automatic Update in Windows Update for Business (Windows 10)
description: Learn how to get started using Windows Update for Business.
ms.prod: w10
ms.mktglfcycl: manage
ms.sitesec: library
audience: itpro author: greg-lindsay
ms.localizationpriority: medium
ms.audience: itpro author: greg-lindsay
audience: itpro
itproauthor: jaimeo
author: jaimeo
ms.localizationprioauthor: jaimeo
ms.audience: itpro
author: jaimeo
ms.date: 06/20/2018
ms.reviewer:
manager: laurawi

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@ -3,10 +3,12 @@ title: Configure the Basic group policy for Windows Update for Business
description: Learn how to get started using the Basic GPO in Windows Update for Business.
ms.prod: w10
ms.mktglfcycl: manage
ms.sitesec: library
audience: itpro author: greg-lindsay
ms.localizationpriority: medium
ms.audience: itpro author: greg-lindsay
audience: itpro
itproauthor: jaimeo
author: jaimeo
ms.localizationprioauthor: jaimeo
ms.audience: itpro
author: jaimeo
ms.date: 06/20/2018
ms.reviewer:
manager: laurawi

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@ -3,7 +3,6 @@ title: Enforce compliance deadlines with policies in Windows Update for Business
description: Learn how to enforce compliance deadlines using Windows Update for Business.
ms.prod: w10
ms.mktglfcycl: manage
ms.sitesec: library
author: jaimeo
ms.localizationpriority: medium
ms.author: jaimeo

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@ -3,10 +3,12 @@ title: Managing drivers, dual-managed environments, and Delivery Optimization wi
description: Learn how to manage drivers, dual managed environments, and bandwidth (Delivery Optimization) with GPOs in Windows Update for Business.
ms.prod: w10
ms.mktglfcycl: manage
ms.sitesec: library
audience: itpro author: greg-lindsay
ms.localizationpriority: medium
ms.audience: itpro author: greg-lindsay
audience: itpro
itproauthor: jaimeo
author: jaimeo
ms.localizationprioauthor: jaimeo
ms.audience: itpro
author: jaimeo
ms.date: 06/21/2018
ms.reviewer:
manager: laurawi

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@ -3,10 +3,12 @@ title: Managing feature and quality updates with policies in Windows Update for
description: Learn how to get started using Windows Update for Business.
ms.prod: w10
ms.mktglfcycl: manage
ms.sitesec: library
audience: itpro author: greg-lindsay
ms.localizationpriority: medium
ms.audience: itpro author: greg-lindsay
audience: itpro
itproauthor: jaimeo
author: jaimeo
ms.localizationprioauthor: jaimeo
ms.audience: itpro
author: jaimeo
ms.date: 06/20/2018
ms.reviewer:
manager: laurawi

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@ -3,10 +3,12 @@ title: Onboarding to Windows Update for Business (Windows 10)
description: Learn how to get started using Windows Update for Business.
ms.prod: w10
ms.mktglfcycl: manage
ms.sitesec: library
audience: itpro author: greg-lindsay
ms.localizationpriority: medium
ms.audience: itpro author: greg-lindsay
audience: itpro
itproauthor: jaimeo
author: jaimeo
ms.localizationprioauthor: jaimeo
ms.audience: itpro
author: jaimeo
ms.reviewer:
manager: laurawi
ms.topic: article