I have read that unless one over writes a hard drive (or takes a hammer to it) nothing is really deleted.
I’m not saying this is perfect but with these keystone cops there are ways.
Data destruction software, sometimes called data sanitization software, disk wipe software, or hard drive eraser software, is a software-based method of completely erasing the data from a hard drive.
Data destruction software is just one of several ways to completely erase a hard drive.
When you delete files and then empty the Recycle Bin, you don’t actually erase the information, you just delete the reference to it so the operating system can’t find it. All the data is still there and, unless it’s overwritten, can be easily recovered using file recovery software.
Data destruction software, however, truly does erase the data. Each data destruction program utilizes one or more data sanitization methods that can permanently overwrite the information on the drive.
If you need to remove all traces of a virus or you’re planning on recycling or disposing of your hard drive, wiping your hard drive using data destruction software is the best way to protect yourself.
Below is a list of the best, completely free data destruction software programs available today: