To manually install a GVLK key without third-party software, follow these steps in an Elevated Command Prompt (Run as Administrator): Cornell University Install the GVLK Key slmgr /ipk
slmgr /xpr
slmgr /ipk W269N-WFGWX-YVC9B-4J6C9-T83GX install gvlk key kmspico windows