You can fix windows error & speed issues that are happening to your PC by getting a registry cleaner & getting rid of the extra files & things that have gone into your registry & added files & settings that you do not wish to have on your computer.
The issue with the registry is that when something is downloaded to your machine from off of the net, or you install certain programs, they may go into your media manager settings many times & change them. This can cause your machine to slow down or your other programs to not work as well.