Windows Update for reserved devices in Windows 8.1 or Windows 7 SP1

Applies to: Windows 8.1 ProWindows 8.1Windows 7 Service Pack 1

About this update

This update applies to some reserved devices that are upgrading to Windows 10 from Windows 8.1 or Windows 7 Service Pack 1 (SP1). Before you install this update, see the Prerequisites section.

How to get this update

Important If you install a language pack after you install this update, you must reinstall this update. Therefore, we recommend that you install any language packs that you need before you install this update. For more information, see Add language packs to Windows.

Windows Update

This update is available on Windows Update. For more information about how to run Windows Update, see How to get an update through Windows Update.

Update detail information


To apply this update, you must have Windows Update Client for Windows 8.1 and Windows Server 2012 R2: September 2015 installed in Windows 8.1. Or, install Windows Update Client for Windows 7 and Windows Server 2008 R2: September 2015 in Windows 7 SP1.

Note This update doesn't apply to computers that are running Enterprise edition.

Registry information

To apply this update, you don't have to make any changes to the registry.

Restart requirement

You may have to restart the computer after you apply this update.

Update replacement information

This update doesn't replace a previously released update.


Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.


See the terminology that Microsoft uses to describe software updates.

File Information

The English (United States) version of this software update installs files that have the attributes that are listed in the following tables. The dates and times for these files are listed in Coordinated Universal Time (UTC). Be aware that dates and times for these files on your local computer are displayed in your local time and with your current daylight saving time bias. The dates and times may also change when you perform certain operations on the files.