How to troubleshoot the Key Management Service (KMS)

How to reset the sysprep rearm counter on Windows 2008 R2

slmgr.vbs /dlv

Use notepad to create a file which contains the following:

reg load HKLM\MY_SYSTEM “%~dp0Windows\System32\config\system”
reg delete HKLM\MY_SYSTEM\WPA /f
reg unload HKLM\MY_SYSTEM

Save it as a .bat file to the root of C: i.e. c:\rearm.bat
slmgr.vbs /ipk <KmsSetupKey>
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