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?

Reinstalling Windows only overwrites some system files and leaves much of the previous user data intact, making it easily recoverable with data recovery tools.

Performing a quick format only deletes the file system table and does not erase the actual data, meaning the information can still be recovered using readily available software.

Disk-wiping software securely erases data by overwriting the entire disk with random data or specific patterns multiple times, ensuring that the original data is unrecoverable even with advanced forensic techniques. This method meets standards for secure data sanitization, making the drive safe for reuse without risk of data leakage.

Deleting all files from the command-line interface simply removes pointers to the files, marking the space as available but leaving the actual data blocks on the drive until they are overwritten by new data.