fix typo

windows/manage/waas-overview.md

@@ -25,7 +25,7 @@ The Windows 10 operating system introduces a new way to build, deploy, and servi
 
 Prior to Windows 10, Microsoft released new versions of Windows every few years. This traditional deployment schedule imposed a training burden on users because the feature revisions were often significant. That schedule also meant waiting long periods without new features — a scenario that doesn’t work in today’s rapidly changing world, a world in which new security, management, and deployment capabilities are necessary to address challenges. Windows as a service will deliver smaller feature updates two to three times per year to help address these issues.
 
-In the past, when Microsoft developed new versions of Windows, it typically released technical previews near the end of the process, whehn Windows was nearly ready to ship. With Windows 10, new features will be delivered to the [Windows Insider community](https://insider.windows.com/) as soon as possible — during the development cycle, through a process called *flighting* — so that organizations can see exactly what Microsoft is developing and start their testing as soon as possible. 
+In the past, when Microsoft developed new versions of Windows, it typically released technical previews near the end of the process, when Windows was nearly ready to ship. With Windows 10, new features will be delivered to the [Windows Insider community](https://insider.windows.com/) as soon as possible — during the development cycle, through a process called *flighting* — so that organizations can see exactly what Microsoft is developing and start their testing as soon as possible. 
 
 Microsoft also depends on receiving feedback from organizations throughout the development process so that it can make adjustments as quickly as possible rather than waiting until after release. For more information about the Windows Insider Program and how to sign up, see the section [Windows Insider](#windows-insider).
 
@@ -68,7 +68,7 @@ With Windows 10, Microsoft will package new features into feature updates that c
 
 Monthly updates in previous Windows versions were often overwhelming because of the sheer number of updates available each month. Many organizations selectively chose which updates they wanted to install and which they didn’t, and this created countless scenarios in which organizations deployed essential security updates but picked only a subset of nonsecurity fixes.
 
-In Windows 10, rather than receiving several updates each month and trying to figure out which the organization needs, which ultimately causes platform fragmentation, administrators will see one cumulative monthly update that supersedes the previous month’s update, containing both security and nonsecurity fixes. This approach makes patching simpler and ensures that customers’ devices are more closely aligned with the testing done at Microsoft, reducing unexpected issues resulting from patching. The left side of Figure 1 provides an example of Windows 7 machines in an enterprise and what their current patch level might look like. On the right is what Microsoft’s test environment PCs contain. This drastic difference is the basis for many compatibility issues and system anomalies related to Windows updates.
+In Windows 10, rather than receiving several updates each month and trying to figure out which the organization needs, which ultimately causes platform fragmentation, administrators will see one cumulative monthly update that supersedes the previous month’s update, containing both security and nonsecurity fixes. This approach makes patching simpler and ensures that customers’ devices are more closely aligned with the testing done at Microsoft, reducing unexpected issues resulting from patching. The left side of Figure 1 provides an example of Windows 7 devices in an enterprise and what their current patch level might look like. On the right is what Microsoft’s test environment PCs contain. This drastic difference is the basis for many compatibility issues and system anomalies related to Windows updates.
 
 **Figure 1**
 
@@ -78,7 +78,7 @@ In Windows 10, rather than receiving several updates each month and trying to fi
 
 ## Servicing branches 
 
-To align with the new method of delivering feature updates and quality updates in Windows 10, Microsoft introduced the concept of servicing branches to allow customers to designate how aggressively their individual machines are updated. For example, an organization may have test machines that the IT department can update with new features as soon as possible, and then specialized devices that require a longer feature update cycle to ensure continuity. With that in mind, Microsoft offers three servicing branches for Windows 10: Current Branch (CB), Current Branch for Business (CBB), and Long-Term Servicing Branch (LTSB). In addition, the Windows Insider Program provides IT pros and other interested parties with prerelease Windows builds that they can test and ultimately provide feedback on to Microsoft. For details about the versions in each servicing branch, see [Windows 10 release information](https://technet.microsoft.com/windows/release-info.aspx).
+To align with the new method of delivering feature updates and quality updates in Windows 10, Microsoft introduced the concept of servicing branches to allow customers to designate how aggressively their individual devices are updated. For example, an organization may have test devices that the IT department can update with new features as soon as possible, and then specialized devices that require a longer feature update cycle to ensure continuity. With that in mind, Microsoft offers three servicing branches for Windows 10: Current Branch (CB), Current Branch for Business (CBB), and Long-Term Servicing Branch (LTSB). In addition, the Windows Insider Program provides IT pros and other interested parties with prerelease Windows builds that they can test and ultimately provide feedback on to Microsoft. For details about the versions in each servicing branch, see [Windows 10 release information](https://technet.microsoft.com/windows/release-info.aspx).
 
 The concept of servicing branches is new, but organizations can use the same management tools they used to manage updates and upgrades in previous versions of Windows. For more information about the servicing tool options for Windows 10 and their capabilities, see [Servicing tools](#servicing-tools).
 
@@ -90,7 +90,7 @@ The concept of servicing branches is new, but organizations can use the same man
 
 In the CB servicing model, feature updates are available as soon as Microsoft releases them. Windows 10 version 1511 had few servicing tool options to delay CB feature updates, limiting the use of the CB servicing branch. Windows 10 version 1607, however, includes more servicing tools that can delay CB feature updates for up to 180 days. The CB servicing model is ideal for pilot deployments and testing of Windows 10 feature updates and for users such as developers who need to work with the latest features immediately.
 
-When Microsoft officially releases a feature update for Windows 10, that update is marked for CB, making it available to any PC not configured to defer feature updates so that those machines can immediately install it. Organizations that use Windows Server Update Services (WSUS), Microsoft System Center Configuration Manager, or Windows Update for Business, however, can defer CB feature updates to selective machines by withholding their approval and deployment. In this scenario, the content available for CB will be available but not necessarily immediately mandatory, depending on the policy of the management system. Only one CB build of Windows is supported at a time, so those clients not on the most current build will not receive quality updates (after a 60 day grace period) until the most current feature update has been installed. For more details about Windows 10 servicing tools, see [Servicing tools](#servicing-tools).
+When Microsoft officially releases a feature update for Windows 10, that update is marked for CB, making it available to any PC not configured to defer feature updates so that those devices can immediately install it. Organizations that use Windows Server Update Services (WSUS), Microsoft System Center Configuration Manager, or Windows Update for Business, however, can defer CB feature updates to selective devices by withholding their approval and deployment. In this scenario, the content available for CB will be available but not necessarily immediately mandatory, depending on the policy of the management system. Only one CB build of Windows is supported at a time, so those clients not on the most current build will not receive quality updates (after a 60 day grace period) until the most current feature update has been installed. For more details about Windows 10 servicing tools, see [Servicing tools](#servicing-tools).
 
 
 ### Current Branch for Business
@@ -105,7 +105,7 @@ Basically, CBB is a configuration state, meaning that if a computer has the **De
 
 ### Long-term Servicing Branch
 
-Specialized systems—such as PCs that control medical equipment, point-of-sale systems, and ATMs—often require a longer servicing option because of their purpose. These devices typically perform a single important task and don’t need feature updates as frequently as other machines in the organization. It’s more important that these devices be kept as stable and secure as possible than up to date with user interface changes. The LTSB servicing model prevents Windows 10 Enterprise LTSB devices from receiving the usual feature updates and provides only quality updates to ensure that device security stays up to date. With this in mind, quality updates are still immediately available to Windows 10 Enterprise LTSB clients, but customers can choose to defer them by using one of the servicing tools mentioned in the section Servicing tools.
+Specialized systems—such as PCs that control medical equipment, point-of-sale systems, and ATMs—often require a longer servicing option because of their purpose. These devices typically perform a single important task and don’t need feature updates as frequently as other devices in the organization. It’s more important that these devices be kept as stable and secure as possible than up to date with user interface changes. The LTSB servicing model prevents Windows 10 Enterprise LTSB devices from receiving the usual feature updates and provides only quality updates to ensure that device security stays up to date. With this in mind, quality updates are still immediately available to Windows 10 Enterprise LTSB clients, but customers can choose to defer them by using one of the servicing tools mentioned in the section Servicing tools.
 
 >[!NOTE]
 >LTSB is not intended for deployment on most or all the PCs in an organization; it should be used only for special-purpose devices.  As a general guideline, a PC with Microsoft Office installed is a general-purpose device, typically used by an information worker, and therefore it is better suited for the CB or CBB servicing branch.
@@ -122,7 +122,7 @@ LTSB is available only in the Windows 10 Enterprise LTSB edition. This build of
 
 ### Windows Insider
 
-For many IT pros, gaining visibility into feature updates early—before they’re available to the CB servicing branch—can be both intriguing and valuable for future end user communications as well as provide additional prestaging for CB machines. With Windows 10, feature flighting enables Windows Insiders to consume and deploy preproduction code to their test machines, gaining early visibility into the next build. Testing the early builds of Windows 10 helps both Microsoft and its customers because they have the opportunity to discover possible issues before the update is ever publicly available and can report it to Microsoft. Also, as flighted builds get closer to their release to CB, organizations can test their deployment on test machines for compatibility validation. 
+For many IT pros, gaining visibility into feature updates early—before they’re available to the CB servicing branch—can be both intriguing and valuable for future end user communications as well as provide additional prestaging for CB machines. With Windows 10, feature flighting enables Windows Insiders to consume and deploy preproduction code to their test machines, gaining early visibility into the next build. Testing the early builds of Windows 10 helps both Microsoft and its customers because they have the opportunity to discover possible issues before the update is ever publicly available and can report it to Microsoft. Also, as flighted builds get closer to their release to CB, organizations can test their deployment on test devices for compatibility validation. 
 
 Microsoft recommends that all organizations have at least a few PCs enrolled in the Windows Insider Program and provide feedback on any issues they encounter. For information about how to sign up for the Windows Insider Program and enroll test devices, go to [https://insider.windows.com](https://insider.windows.com).