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windows/privacy/diagnostic-data-viewer-overview.md
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---
title: Diagnostic Data Viewer Overview (Windows 10 and Windows 11)
title: Diagnostic Data Viewer overview
description: Use this article to use the Diagnostic Data Viewer application to review the diagnostic data sent to Microsoft by your device.
ms.service: windows-client
ms.subservice: itpro-privacy
@ -7,8 +7,9 @@ ms.localizationpriority: high
author: DHB-MSFT
ms.author: danbrown
manager: dansimp
ms.date: 01/09/2018
ms.date: 05/30/2025
ms.topic: how-to
hideEdit: true
ms.collection:
- privacy-windows
- must-keep
@ -31,22 +32,20 @@ You must download the app before you can use the Diagnostic Data Viewer to revie
### Turn on data viewing
Before you can use this tool for viewing Windows diagnostic data, you must turn on data viewing in the **Settings** panel. Turning on data viewing lets Windows store your device's diagnostic data until you turn it off. Turning off data viewing stops Windows from collecting your diagnostic data and clears the existing diagnostic data from your device. Note that this setting does not affect your Office data viewing or history.
Before you can use this tool for viewing Windows diagnostic data, you must turn on data viewing in the **Settings** panel. Turning on data viewing lets Windows store your device's diagnostic data until you turn it off. Turning off data viewing stops Windows from collecting your diagnostic data and clears the existing diagnostic data from your device. This setting doesn't affect your Office data viewing or history.
**To turn on data viewing**
1. Go to **Start**, select **Settings** > **Privacy** > **Diagnostics & feedback**.
1. Go to **Start**, select **Settings** > **Privacy & security** > **Diagnostics & feedback**.
2. Under **Diagnostic data**, turn on the **If data viewing is enabled, you can see your diagnostics data** option.
![Location to turn on data viewing.](images/ddv-data-viewing.png)
2. Under **View diagnostic data**, turn on the **Turn on the Diagnostic Data Viewer** option.
### Download the Diagnostic Data Viewer
Download the app from the [Microsoft Store Diagnostic Data Viewer](https://www.microsoft.com/store/p/diagnostic-data-viewer/9n8wtrrsq8f7?rtc=1) page.
Download the app from the [Microsoft Store Diagnostic Data Viewer](https://apps.microsoft.com/detail/9n8wtrrsq8f7) page.
> [!Important]
> It's possible that your Windows device doesn't have the Microsoft Store available (for example, Windows Server). If this is the case, see [Diagnostic Data Viewer for PowerShell](./diagnostic-data-viewer-powershell.md).
> It's possible that your Windows device doesn't have the Microsoft Store available (for example, Windows Server). If this is the case, see [Diagnostic Data Viewer for PowerShell overview](diagnostic-data-viewer-powershell.md).
### Start the Diagnostic Data Viewer
@ -54,18 +53,18 @@ You can start this app from the **Settings** panel.
**To start the Diagnostic Data Viewer**
1. Go to **Start**, select **Settings** > **Privacy** > **Diagnostics & feedback**.
1. Go to **Start**, select **Settings** > **Privacy & security** > **Diagnostics & feedback**.
2. Under **Diagnostic data**, select the **Diagnostic Data Viewer** button.
2. Under **View diagnostic data**, select the **Open Diagnostic Data Viewer** button.
![Location to turn on the Diagnostic Data Viewer.](images/ddv-settings-launch.png)<br><br>-OR-<br><br>
<br><br>-OR-<br><br>
Go to **Start** and search for _Diagnostic Data Viewer_.
Go to **Start** and search for *Diagnostic Data Viewer*.
3. Close the Diagnostic Data Viewer app, use your device as you normally would for a few days, and then open Diagnostic Data Viewer again to review the updated list of diagnostic data.
>[!Important]
>Turning on data viewing can use up to 1GB (by default) of disk space on your system drive. We strongly recommend that you turn off data viewing when you're done using the Diagnostic Data Viewer. For info about turning off data viewing, see the [Turn off data viewing](#turn-off-data-viewing) section in this article.
>Turning on data viewing can use up to 1 GB (by default) of disk space on your system drive. We strongly recommend that you turn off data viewing when you're done using the Diagnostic Data Viewer. For info about turning off data viewing, see the [Turn off data viewing](#turn-off-data-viewing) section later in this article.
### Use the Diagnostic Data Viewer
@ -80,26 +79,26 @@ The Diagnostic Data Viewer provides you with the following features to view and
![View your diagnostic events.](images/ddv-event-view.jpg)
- **Search your diagnostic events.** The **Search** box at the top of the screen lets you search amongst all of the diagnostic event details. The returned search results include any diagnostic event that contains the matching text.
- **Search your diagnostic events.** The **Search** box at the top of the screen lets you search among all of the diagnostic event details. The returned search results include any diagnostic event that contains the matching text.
Selecting an event opens the detailed JSON view, with the matching text highlighted.
- **Filter your diagnostic event categories.** The app's **Menu** button opens the detailed menu. In here, you'll find a list of diagnostic event categories, which define how the events are used by Microsoft. Selecting a check box lets you filter between the diagnostic event categories.
- **Filter your diagnostic event categories.** The app's **Menu** button opens the detailed menu. In here, you can find a list of diagnostic event categories, which define how the events are used by Microsoft. Selecting a check box lets you filter between the diagnostic event categories.
- **Help to make your Windows experience better.** Microsoft only needs diagnostic data from a small amount of devices to make big improvements to the Windows operating system and ultimately, your experience. If you’re a part of this small device group and you experience issues, Microsoft will collect the associated event diagnostic data, allowing your info to potentially help fix the issue for others.
- **Help to make your Windows experience better.** Microsoft only needs diagnostic data from a small number of devices to make big improvements to the Windows operating system and ultimately, your experience. If you’re a part of this small device group and you experience issues, Microsoft will collect the associated event diagnostic data, allowing your info to potentially help fix the issue for others.
To signify your contribution, you’ll see this icon (![Icon to review the device-level sampling.](images/ddv-device-sample.png)) if your device is part of the group. In addition, if any of your diagnostic data events are sent from your device to Microsoft to help make improvements, you’ll see this icon (![Icon to review the event-level sampling](images/ddv-event-sample.png)).
- **Provide diagnostic event feedback.** The **Feedback** icon in the upper right corner of the window opens the Feedback Hub app, letting you provide feedback about the Diagnostic Data Viewer and the diagnostic events.
- **Provide event feedback.** The **Feedback** icon in the upper right corner of the window opens the Feedback Hub app, letting you provide feedback about the Diagnostic Data Viewer and the diagnostic events.
Selecting a specific event in the Diagnostic Data Viewer automatically fills in the field in the Feedback Hub. You can add your comments to the box labeled, **Give us more detail (optional)**.
>[!Important]
>All content in the Feedback Hub is publicly viewable. Therefore, make sure you don't put any personal info into your feedback comments.
- **View a summary of the data you've shared with us over time.** Available for users on build 19H1+, 'About my data' in Diagnostic Data Viewer lets you see an overview of the Windows data you've shared with Microsoft.
- **View a summary of the data you've shared with us over time.** The **About my data** in Diagnostic Data Viewer lets you see an overview of the Windows data you've shared with Microsoft.
Through this feature, you can checkout how much data you send on average each day, the breakdown of your data by category, the top components and services that have sent data, and more.
Through this feature, you can see how much data you send on average each day, the breakdown of your data by category, the top components and services that have sent data, and more.
>[!Important]
>This content is a reflection of the history of Windows data the app has stored. If you'd like to have extended analyses, please modify the storage capacity of Diagnostic Data Viewer.
@ -108,19 +107,18 @@ The Diagnostic Data Viewer provides you with the following features to view and
## View Office Diagnostic Data
By default, Diagnostic Data Viewer shows you Windows data. You can also view Office diagnostic data by enabling the feature in the app settings page. To learn more about how to view Office diagnostic data, please visit this [page](https://go.microsoft.com/fwlink/?linkid=2023830).
By default, Diagnostic Data Viewer shows you Windows data. You can also view Office diagnostic data by enabling the feature in the app settings page. To learn more about how to view Office diagnostic data, see [Using the Diagnostic Data Viewer with Office](https://support.microsoft.com/office/cf761ce9-d805-4c60-a339-4e07f3182855).
## Turn off data viewing
When you're done reviewing your diagnostic data, you should turn of data viewing. This will also remove your Windows data history. Note that this setting does not affect your Office data viewing or history.
When you're done reviewing your diagnostic data, you should turn of data viewing. This also removes your Windows data history. This setting doesn't affect your Office data viewing or history.
**To turn off data viewing**
1. Go to **Start**, select **Settings** > **Privacy** > **Diagnostics & feedback**.
1. Go to **Start**, select **Settings** > **Privacy & security** > **Diagnostics & feedback**.
2. Under **Diagnostic data**, turn off the **If data viewing is enabled, you can see your diagnostics data** option.
2. Under **View diagnostic data**, turn off the **Turn on the Diagnostic Data Viewer** option.
![Location to turn off data viewing.](images/ddv-settings-off.png)
## Modifying the size of your data history
@ -131,14 +129,14 @@ By default, Diagnostic Data Viewer shows you up to 1GB or 30 days of data (which
**Modify the size of your data history**
To make changes to the size of your Windows diagnostic data history, visit the **app settings**, located at the bottom of the navigation menu. Data will be incrementally dropped with the oldest data points first once your chosen size or time limit is reached.
To make changes to the size of your Windows diagnostic data history, visit the **app settings**, located at the bottom of the navigation menu. Data is incrementally dropped with the oldest data points first once your chosen size or time limit is reached.
> [!Important]
> Decreasing the maximum amount of diagnostic data viewable through the tool will remove all data history and requires a reboot of your device. Additionally, increasing the maximum amount of diagnostic data viewable by the tool may come with performance impacts to your machine.
## View additional diagnostic data in the View problem reports tool
Available on Windows 10 1809 and higher and Windows 11, you can review additional Windows Error Reporting diagnostic data in the **View problem reports** page within the Diagnostic Data Viewer.
Available on Windows 10 (version 1809 and higher) and on Windows 11, you can review additional Windows Error Reporting diagnostic data in the **View problem reports** page within the Diagnostic Data Viewer.
This page provides you with a summary of various crash reports that are sent to Microsoft as part of Windows Error Reporting.
We use this data to find and fix specific issues that are hard to replicate and to improve the Windows operating system.
@ -147,7 +145,7 @@ You can also use the Windows Error Reporting tool available in the Control Panel
**To view your Windows Error Reporting diagnostic data using the Diagnostic Data Viewer**
Starting with Windows 1809 and higher, you can review Windows Error Reporting diagnostic data in the Diagnostic Data Viewer.
On Windows 10 (version 1809 and higher) and on Windows 11, you can review Windows Error Reporting diagnostic data in the Diagnostic Data Viewer.
![Starting with Windows 1809 and higher and Windows 11, you can review Windows Error Reporting diagnostic data in the Diagnostic Data Viewer.](images/ddv-problem-reports.png)
@ -159,23 +157,5 @@ The **Review problem reports** tool opens, showing you your Windows Error Report
![View problem reports tool with report statuses.](images/control-panel-problem-reports-screen.png)
## Known Issues with Diagnostic Data Viewer
### Microsoft Edge diagnostic data appearing as a blob of text
**Applicable to:** The new Microsoft Edge (v. 79.x.x.x or higher)
**Issue:** In some cases, diagnostic data collected and sent from the New Microsoft Edge fails to be translated by the decoder. When decoding fails, the data appears as a blob of text in the Diagnostic Data Viewer. We are working on a fix for this issue.
**Workaround:**
- Restart your computer and open Diagnostic Data Viewer.
*OR*
- Restart the *DiagTrack* service, through the Services tab in task manager, and open Diagnostic Data Viewer.
**Background:** Some of the diagnostic data collected from the new Microsoft Edge is sent using a Protocol Buffers (protobuf) to reduce network bandwidth and to improve data transfer efficiency. Diagnostic Data Viewer has a decoding capability to translate this protobuf format into human readable text. Due to a bug, sometimes the decoder fails to translate these protobuf messages and hence some of the New Microsoft Edge diagnostic data will appear as a blob of encoded text.
> [!IMPORTANT]
> To inquire about Windows data access or interoperability related to the Digital Markets Act (DMA), [submit this form](https://go.microsoft.com/fwlink/p/?linkid=2271128).

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windows/privacy/diagnostic-data-viewer-powershell.md
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@ -60,7 +60,7 @@ This setting doesn't control whether your device sends diagnostic data. Instead,
Once data viewing is enabled, your device begins saving a history of diagnostic data that is sent to Microsoft from this point on.
>[!IMPORTANT]
>Turning on data viewing can use up to 1 GB (default setting) of disk space on your system drive. We recommend that you turn off data viewing when you're done using the Diagnostic Data Viewer. For info about turning off data viewing, see the [Turn off data viewing](#turn-off-data-viewing) section in this article.
>Turning on data viewing can use up to 1 GB (default setting) of disk space on your system drive. We recommend that you turn off data viewing when you're done using the Diagnostic Data Viewer. For info about turning off data viewing, see the [Turn off data viewing](#turn-off-data-viewing) section later in this article.
#### To turn on data viewing through the Settings page