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.
KMS server List:
win8kms4.mooo.com - (IPv4) - ONLINE - NOTE: This server redirects to the latest public KMS Server.
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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 -ipk NG4HW-VH26C-733KW-K6F98-J8CK4 slmgr /skms <KMS SERVER> slmgr.vbs -ato
win8kms4.mooo.com - (IPv4) - ONLINE - NOTE: This server redirects to the latest public KMS Server.
*The KMS activation remove the activation watermark of Windows 8.
*KMS activation has always had a 180 day limitation, and is not permenant solution. It will only last for 180 days before it will have to be activated again.(it's the only
solution for the time being)
*There's no solution yet for kms activation on Windows8 Core edition.