Information

Get Windows Licence

Cmd

wmic path softwarelicensingservice get OA3xOriginalProductKey

PowerShell

(Get-WmiObject -query ‘select * from SoftwareLicensingService’).OA3xOriginalProductKey

Registry

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\SoftwareProtectionPlatform
-> BackupProductKeyDefault