my computer keeps freezing/crashing etc.., so i decided to reinstall my os, the problem is i dont want to lose any of my data. i dont have a extra harddrive lying around and disc so i cant exactly back them up, the only thing available to me is the os disc that came with purchasing my comp, i wanted to know how would i get around to keeping all my files on my comp with what i have, i read something about when reinstalling itll make a file called windows.old and move all my files in my desktop/documents there, how would i get around to doing this?