Solve the "Non-Genuine Windows" Problem

there's only5 simple steps to solve this problem:

1. go to Start > Run, key in this code:
%windir%\system32\wgatray.exe /u

2. again, go to Start > Run, key in this code:
regedit

3. look for this:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\WgaLogon

4. delete the 'WgaLogon' folder

5. restart your computer

6. Done~