27 January 2011

How to disable or uninstall Microsoft WGA?


When you use a non-genuine version of Windows, you receive a message when you log on that states that the copy of Windows appears to be non-genuine. Then, you are directed to the WGA Web site to learn more. If you do not want to obtain a genuine copy of Windows, you receive periodic messages that notify you that the copy of Windows appears to be non-genuine.


This method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click the following article number to view the article in the Microsoft Knowledge Base:


322756  How to back up and restore the registry in Windows

Manually uninstall WGA Notifications


Log on to the computer by using an account that has administrative permissions.

Make sure that the WGA Notifications version that exists on the computer is a pilot version. The version format for the pilot version is 1.5.0532.x. In this case, you can uninstall versions 527-532 only. For example, you can uninstall versions that range from 1.5.0527.0 to 1.5.0532.2. To find the WGA Notifications version, follow these steps:

Click Start, and then click Control Panel.

Double-click Add or Remove Programs, click Windows XP - Software, click Windows Genuine Advantage Notifications, and then click Click here for support information.



Note If Windows Genuine Advantage Notifications does not appear, the release version is installed. You cannot uninstall the release version of WGA Notifications.

In the Support Info dialog box, verify the version number, and then click Close.

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:

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

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



SOURCE: MICROSOFT SUPPORT


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