Install a KMS client key for your version (e.g., Windows 10 Pro): slmgr /ipk W269N-WFGWX-YVC9B-4J6C9-T83GX
Originally a tool for large businesses, these scripts connect a PC to a third-party, unofficial KMS server. Windows "checks in" with this server every 180 days to remain activated. activate windows 10 cmd github