How to Validate your Windows?

1) Go to Regisrty (Type regedit in Run Menu) Go to the following key : HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\WPAEvents

2) Double click OOBETimer Value In the right pane, in the value data box change "FF" to "00"

3) Type %systemroot%\system32\oobe\msoobe.exe /a in Run menu

4) in the opened window select (Yes,I want to telephone a customer service representative to activate Windows) and click next

5) In the opened window click "Change product key "

6) In this window type this new code "B7R7P-J63JP-2J7VH-W3TDJ-PDP7T" and click update

7) Restart the computer

8) Type %systemroot%\system32\oobe\msoobe.exe /a in Run menu

9) Now u will c "Windows is already activated.click ok to exit "