Thank you Dr Govloop 🙂
To your question, I don't really have a great answer because I have a guy who does this kind of thing for me for free. He is a professional who knows how to wipe it as clean as possible. I wonder if more professionals would do it for free if they knew you were donating the computer? Humm, maybe something we can start on GovLoop. We have some very good computer folks on here, maybe they can start a revolution of "Wipe you hard drive for charity Day!" Anyone who has an old computer can donate the computer on a certain day and it will get wiped for free (or the hard drive removed for free) to be donated to a non-profit organization or a recycle program.