WMP 11 cannot rollback?

I have tried to uninstall it by going to the control panel and checking the box to show updates(which i have none for some reason.)And It says: Rollback complete So when i go back and check i still have wmp11! And i also used Windows components which didnt work and.......i went to system restore......The time when i install it was pretty long lol.So there was no restore point =(