2 . Go to the key:
HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\WindowsNT\ CurrentVersion\WPAEvents\OOBETimer
…and doubleclick on it.
3 . Go to start > run > “%systemroot%\system32\oobe\msoobe.exe /a” (again, don’t type the quotes)
[eminimall]4 . The activation screen will come up, click on register over telephone,>next> then click on CHANGE PRODUCT KEY, enter in this key:
JG28K-H9Q7X-BH6W4-3PDCQ-6XBFJ and give update.