Quote Originally Posted by Bear View Post
Then use the partitioning program to make a partition in the free space using a ext2, 3, or 4 type file system, then change it back to NTFS, rendering any info on the free space unrecoverable.
I have been around the block a few times with drives and partitions, and although I was never really in the know, I did enough experimentation on all forms of drives and circumstances, that would be my best suggestion, but it would seem an awful lot to do to save wiping the entire drive and starting with a fresh install of Windows ; )
Thanks Bear. I did not realize that you can use a partitioning program to make a new partition on a disk that already has one, without messing that one up. Learning something every day.

The reason why I want to do it this way is that this computer is low-end, has a small disk, little RAM etc and I don't have access to a free or cheap copy of Windows. So I just want to wipe whatever I can and sell the machine as is, without spending too much time on it.