It will also clean up temporary file folders, and reset your system's basic services, with the goal of fixing small errors and reducing the probability of future errors.
The best part of the application is how simple it is: there is just one button, which is what you need to push to run it. In fact, we haven't yet found any maintenance application that's easier to use.
RefreshPC is a good tool for any user. Of course, don't forget to make a backup copy of your system before you use the program for the first time.