Eggy, back up is not a program on your computer. Back up is copying your files from your hard drive to some other form of storage, in case the hard drive fails.
I burn them to a cdr. Documents, mp3s, photos, or any other files that you don't won't to lose.
If you have a cd burner, you can burn your files to a data cd. Then you'll be able to copy them from the cd back to your computer or another computer, if needed.
I can't find backup anywhere on my WinMe PC,3yrs never ran backup-Help.