If you feel something is not right with your PC, ask Dr Watson.
Click on Start > Run and type in drwatson.exe then click OK.
An icon will show up in your System Tray (bottom right of the taskbar).

If you double-click on the icon the program will look over everything for you
and tell you if it found something unhealthy. If you right-click on the System
tray icon you will see some options you can set as well.