On a shared computer used by the children someone has been viewing and saving (let's just say) unsavory materials on the hard drive. I would like to totally clean/wipe the drive and reinstall Windows XP. However, I am told that even after "formatting" and reinstalling windows, files can be restored or recovered. Is there any way to ""really"" clean the drive so that previous files cannot be recovered. I am looking for a low cost or free solution if possible. Kids are pretty savy these days and I will be locking down this system better after this cleanup.