[Nexess]

:| Have you tried uninstalling programs that you no longer use or that your mother had on the computer? With so little memory room it may be a simple fact that when your using so many programs the computer doesn't have nough space to run them and freezes.

Disk cleaning and disk defragment are also something to do before taking it in, they should be in your acc' tab in your main programs tab. But do those after you have removed excess programs from your computer.