elcholo

Hi, I am considering selling my laptop in the future. I undersand that when you 'delete' a file from the recycle bin that it still traceable on the hard drive if you really needed to. My question though, is - if I install a new copy of windows before selling will it remove all traces of my personal files or could someone still get them if they went to the time and effort? I was planning to use the supplied CD recovery disks to install windows again. Any advice will be appreciated. Many thanks