Activate window 8 Pro by Command Prompt
1. Open Command Prompt by Run as administrator
mean (right click on command prompt and click run as administrator)
2. Click Yes (if ask)
3. type those four sentences
slmgr / upk and press enter
slmgr / ipk NG4HW-VH26C-733KW-K6F98-J8CK4 and press enter
slmgr / skms fourdeltaone.net: 1688 and press enter
slmgr.vbs-ato and press enter
4. Click OK (Please read the message box)
Here window 8 product key
PRO Keys :
slmgr.vbs -ipk 6GN7R-2MQWJ-4FHKJ-7Y98G-YG8KB
slmgr.vbs -ipk N6VDM-4JG7W-QBPT4-6WJMG-WXBCY
slmgr.vbs -ipk GX3NG-998CM-94XDX-DDGCK-RM32Y
with media center Keys :
slmgr.vbs -ipk G22J7-X23KX-M83GN-X3QX4-JHRFQ
slmgr.vbs -ipk DXBKW-84CHK-2HMQN-YGVXW-JFDJD
slmgr.vbs -ipk F7PRH-YX422-N8KV7-4XBT6-VCBRQ
slmgr.vbs -ipk FCM86-FGF3K-2KXN9-CP997-DRPM3
slmgr.vbs -ipk FXPVR-8MHF8-NQ9GC-XQXB8-D9H4Q
Thanks