How to roll back or uninstall Windows Media Player 11 (Windows Vista)

Windows Media Player (WMP) designed for Windows XP cannot be installed on Windows Vista. Moreover WMP is part of the basic installation of Windows Vista so there is no option to remove it from Control Panel -> Programs or to run a stand alone re-installation of the Windows Media Player for Vista.

IMHO the easiest way to solve problem with the Windows Media Player 11 for Vista is by using System Restore to restore your system to a date where Windows Media Player was still working without problems. To do so:

1. Go to Start-menu -> Search-bar -> type in RESTORE and press Enter on your keyboard. This will open the System Restore program.
2. Select a restore point after clicking on Next.

Select a date before the 24th February to get the system repaired. If you have installed additional applications after the 24th February it will be necessary to reinstall the software of course.