Select Remove one or more Windows Live Programs, then select Messenger. Select Windows Live Essentials and click Uninstall/Change. Under Programs, select Uninstall a Program. In both Windows Vista and 7, click the Start button and Control Panel. Ensure that you install the latest version of Windows Live Essentials on your computer before continuing. You can also click the Review Important Updates or Important Updates Are Available link to see the available updates, and click View Update History to see which updates you’ve already installed. If there are updates available for installation, select Install Updates. Select Windows Update from the program list. In the Start Search box, type Windows Update. To get started removing Windows Live Messenger in Windows Vista and 7, you must first make sure that Windows Live Essentials is updated. Make sure that the Startup Type is set to Disabled, then click OK. Then find Messenger within the list of programs. Click Start, Control Panel, Performance and Maintenance, then click Administrative Tools. In both Windows XP Home Edition and Professional, you can disable Messenger in Administrative Tools. Select Windows Messenger, right click the “Do not allow Windows Messenger to run” option and choose Properties. In the list, find Computer Configuration, Administrative Templates, then Windows Components. Click Start, Run, then type gpedit.msc in the field provided.

In Windows XP Professional, use the Group Policy Editor to remove Messenger.

Uninstall windows xp mode