computer type i have is a tower

windows ME sucks ass, be smart and go by windows xp professional

Your computer type is a desktop.
To try to help you, I need some more information.
How much do you know about computers?
Do you have an anti virus program?
If you do is it mcafee anti-virus?
How old is your computer?
Did you buy it from a store? if you did it still might be under warranty and you could take it back.
Does it ask if you want to enter any key or to press enter to return to windows when it crashes?
Depending on your knowledge of computer you may pick up this information fast or i may have to give you the information in steps. Either way I will try to help you. Hope this helps.