A company wants to remove information from past users' hard drives in order to reuse the hard drives. Which of the following is the MOST secure method?

A company wants to remove information from past users' hard drives in order to reuse the hard drives. Which of the following is the MOST secure method?

A. Reinstalling Windows B. Performing a quick format C. Using disk-wiping software D. Deleting all files from command-line interface: