So if you are using Windows 8 or older versions, you will not be able to install it. strComputer = ". The Windows on the selected computer is now in a deactivated unlicensed state with the product key number removed. Application after the 10 seconds from when the VB Script run. This update extends the Key Management Service (KMS) for Windows Vista, Windows Server 2008, Windows 7, Windows Server 2008 R2, Windows 8, and Windows Server 2012 to enable the. Simply launch Command Prompt with administrator privileges and type the following: “slmgr.