I wish I could have found somebody to backup my system for me when I first had trouble a few years ago.
The problem was Best Buy or one of those places wanted 300 dollars to do it. This is when computers started getting cheaper so I decided I'd better learn about a simple solution myself.
Especially the way Win 98 used to behave 4 or 5 times a year I had to wipe it out and start over reformat and everything.
SO bottom line if you can afford it great. But I would still back up all the files you created before you take it anyplace.