run and type regedit.now expand ;
HKEY LOCAL MACHINE;SOFTWARE;MICROSOFT;WINDOWSNT;CurrentVersion;WPAEvents;
On the right -double click on OOBETimer,In that window delete everything you can and exit.
Go to Run and type %systemroot%\system32\oobe\msoobe.exe /a enter it.
choose, Yes I Wish to call.click next,.click Modify Product Key.
Type; THMPV-77D6F-94376-8HGKG-VRDRQ .Click Update. Press,Remember Later.
Restart the windows.
when back go to run & type the same.;%systemroot%\system32\oobe\msoobe.exe /a ;It is all ready there :enter:
You'll see the message;Windows activated press OK to exit.It is done