What do you mean - didn't they at least give you a CD to enable you to restore the computer to the way it was when you got it? If not, go back and make them give you one. I do know that MS have stoped them giving out a WIndows XP setup disk, but that's no excuse for leaving you in the lurch. However, if you're talking about data backup, you can do any number of things as it is - the simplest thing is to drag 'n drop your data files onto a re-writable CD. Or you could get yourself a zip drive, which will comes with its own software. Or look on the internet for some free or shareware backup utilities, or even the downloads section of this site.