
The following are instructions are for activate windows8 profesional or Enterprise not for Core.
Make sure your computer's clock is accurate and your time zone is correct, then run the following commands in the Command Prompt as Administrator replacing <KMS SERVER> with aWindows 8 Compatable KMS server IP or hostname.
Code:
For Windows 8 Enterprise:
slmgr /skms <KMS SERVER>
slmgr.vbs -ato
For Windows 8 Professional:
slmgr.vbs...