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:
The answer is C because both A and D will not accomplish wiping a hard drive, and subsequently a quick format will not sufficiently wipe information from a drive.
C because dedicated software will rewrite everything at a bit-per-bit level. Everything else would do at best a quick format which just allocates the space as overwritable but not actually physically deleted or changed.
Data wiping is the most secure method for removing information from past users' hard drives. This involves overwriting the data multiple times with random data, making it extremely difficult to recover the original information.
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