How to fix "genuine windows licence" error!

How to fix "genuine windows licence" error!

Rename the following files by changing the extension to .old:

• Rename %Windir%\system32\WgaLogon.dll to %Windir%\system32\WgaLogon.old
• Rename %Windir%\system32\WgaTray.exe to %Windir%\system32\WgaTray.old

Restart the computer.

Unregister LegitCheckControl.dll by using Regsvr32. To do this, follow these steps:

a. Click Start, click Run, type cmd, and then click OK.
b. At the command prompt, type the following, and then press ENTER:
Regsvr32 %Windir%\system32\LegitCheckControl.dll /u

Restart the computer.

Click Start, click Run, type cmd, and then click OK.

At the command prompt, delete the following files by typing the Del command. Press ENTER after you type each command.

• Del %Windir%\system32\wgalogon.old
• Del %Windir%\system32\WgaTray.old
• Del %Windir%\system32\LegitCheckControl.dll

At the command prompt, type regedit.

Locate and then right-click the following registry subkeys. Click Delete after you locate each subkey.

• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\WindowsNT\ CurrentVersion\Winlogon\Notify\WgaLogon
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows \CurrentVersion\Uninstall\WgaNotify

Lưu ý: %Windir% nghĩa là địa chỉ thư mục Windows trên máy của các bác. Mặc định là C:\windows
copy từ đâu quên rồi a'!