Is there a program to truly delete all deleted files?
I recently moved a bunch of files off my harddrive. How can I zero out the unallocated disk space to make sure all the files I recently moved off the harddrive are unrecoverable?
This is windows-xp on my work computer, so I would prefer not to have to install anything if possible. I am familiar with shred, but I think that only works if you still have the files.