However, only advanced users should try to perform this operation, since modifying or removing registry keys might result in application or even system failures. You can use the generated uninstall command to manually remove Windows Live Messenger from the system by deleting the corresponding registry entries.

Windows Live Messenger Uninstaller scans your computer for available broken installations and automatically detects the corresponding CLSID key, a registry component that uniquely identifies the installation version and other similar details. The main interface is simple, only comprising the uninstall command box and a button for initiating the command. The application uses the Windows Installer component (msiexec) in order to delete the broken installation. As its name implies, it provides you with an efficient method for permanently removing a broken Windows Live Messenger installation from your system. If you experience such symptoms, Windows Live Messenger Uninstaller could come in handy.

For instance, the setup might notify you that Windows Live Messenger is already installed, while the program is not even listed in the 'Add/Remove' section. Therefore, new errors might occur when trying to re-install it. If anything goes wrong during the usual uninstall process of Windows Live Messenger (by accessing the 'Add/Remove' section in the Control Panel), there might be leftover files that are not deleted properly.

How to delete windows live messenger