Windows 7 licens key is “not genuine” and activation failes after installing KB971033.

INTRODUCTION

After installing KB971033 update some clients has issue with the KMS licens key is not genuine.  It is a known issue for Microsoft. You find more information here.  https://support.microsoft.com/en-us/help/4480970/windows-7-update-kb4480970

SOLUTION

The solution from Microsoft to be able to activate Windows again is to uninstall the patch, rebuild the Activation related files and then activate Windows.

  1. Start with uninstall the patch from Control Panel > Windows Update > View update history > Installed Updates, right-click Update (KB971033), and select Uninstall.
  2. Restart the computer.
  3. Now when the patch is no longer installed, we should rebuild the activation related files and activate Windows. Start CMD as administrator and run following commands:

net stop sppuinotify

sc config sppuinotify start= disabled

net stop sppsvc

del %windir%\system32\7B296FB0-376B-497e-B012-9C450E1B7327-5P-0.C7483456-A289-439d-8115-601632D005A0 /ah

del %windir%\system32\7B296FB0-376B-497e-B012-9C450E1B7327-5P-1.C7483456-A289-439d-8115-601632D005A0 /ah

del %windir%\ServiceProfiles\NetworkService\AppData\Roaming\Microsoft\SoftwareProtectionPlatform\tokens.dat

del %windir%\ServiceProfiles\NetworkService\AppData\Roaming\Microsoft\SoftwareProtectionPlatform\cache\cache.dat

net start sppsvc

cscript c:\windows\system32\slmgr.vbs /ipk <edition-specific KMS client key>

cscript c:\windows\system32\slmgr.vbs /ato

sc config sppuinotify start= demand

 

You can find the KMS-keys in the following link. https://docs.microsoft.com/sv-se/windows-server/get-started/kmsclientkeys

 

Disclaimer: All information on this blog is offered "as is" with no warranty. It is strongly recommended that you verify all information and validate all scripts in isolated test environments before using them in production environments.