Connect to a KMS server. You can use a public KMS server or a known working script-based server. slmgr /skms ://msguides.com (or another active KMS server) and hit Enter. Activate Your Windows:
that mimic a "Key Management Service" (KMS)—a legitimate Microsoft technology used by large organizations to activate many computers at once—to trick Windows into thinking it has a valid license. windows 8 kms activator v20 index of server 1 install