1. Type Regedit on the Run Menu
2. Go to Hkey-Local_Machine/Software/ Microsoft/WindowsNT/CurrentVersion/
WPAEvents
3. Select OOBETimer (Reg-Binary) and Press Enter. Now You will See a Set of 12 Keys.
4. FF D5 71 D6 8B 6A 8D 6F D5 33 93 FD
{just delete D6 (4th entry) and replace it with C4}
5. Exit Regedit.
6. Type "%systemroot%\system32\oobe\msoobe.exe /a" on the Run Menu (without quotes)
7. Select "Yes I want to telephone a customer service representative to activate windows".
8. Click Next
9. Select "Change Product Key"
10. Put these keys
QMDGV-QRC2B-XF6JB-GRGHK-W9DRC
11. Select Update
Dont worry about asking again to register , close that
Restart the system and repeat steps 6 to 11, now the process will tell you that Windows XP is already activated.
Thats All.
Activate Windows XP Without Registration
