In this forum this question has been done a few times. The accepted answer is to wipe the drive clean with DBAN and leave it in a non-operating state for the recipient to deal with. Or just keep the hard drive to hammer the platters for disposal.
Any answer to just install the OS leaves bits of data you may not want to get out.
I have a used computer which I would like to donate but before doing that I want to make certain that all of the data has been deleted from the computer plus it had a virus and that would need to be removed, also. Please let me know how to clean the data and virus from this computer (a Dell).
Thanks for your help!