Update that enables Windows 7 and Windows Server 2008 R2 KMS hosts to activate Windows 10

About this update

This update extends KMS for Windows 7 Service Pack 1 (SP1) and Windows Server 2008 R2 SP1 to enable the activation of Windows 10-based clients.

Note This hotfix is the prerequisite to enable Windows 10 client KMS activations on a Windows 7 or Windows Server 2008 R2 KMS host. After you install this hotfix, the Windows 10 host key (CSVLK) can be installed and activated on the Windows 7 KMS host, and the "Windows Srv 2012R2 Data Ctr/Std KMS for Windows 10" host key (CSVLK) can be installed and activated on the Windows Server 2008 R2 KMS host.

For more information about KMS, see Understanding KMS.

How to get this update

Important Don't install a language pack after you install this update or hotfix. Otherwise, the language-specific changes in the update or the hotfix won't be applied, and you will have to reinstall the update or the hotfix. For more information, see Add language packs to Windows.

Microsoft Download Center

The following files are available for download from the Microsoft Download Center:

Operating systemUpdate
All supported x86-based versions of Windows 7Download Download the package now.
All supported x64-based versions of Windows 7 Download Download the package now.
All supported x64-based versions of Windows Server 2008 R2Download Download the package now.
All supported IA-based versions of Windows Server 2008 R2Download Download the package now.

For more information about how to download Microsoft support files, click the following article number to view the article in the Microsoft Knowledge Base:
119591 How to obtain Microsoft support files from online services
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Update detail information

Prerequisites

To install this update, install Service Pack 1 for Windows 7 or Windows Server 2008 R2.

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.
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