Time to find out more and to clean up some messes...

You've looked under the hood physically, let's look more deeply using Belarc Advisor.

We also need to clean up some junk with CCleaner.

Belarc Advisor creates a profile of your computer that is loaded with useful information.

To install it, start here.

CCleaner is a great utility for cleaning out unwanted files.

The CCleaner installation instructions can be found here.