This will not only delete the files the drive contains, but also overwrite it with random data. With Secure Eraser, click on “Securely erase hard drive/partition” on the start screen ...

With that in mind, here’s how to completely wipe any old hard drive you might ... especially for a larger hard drive. It will take even longer if you opt for the most secure option.

Select your hard drive, then select Security Options. From here, slide the slider to Most Secure. Follow the prompts asking if you really want to erase the drive, and sit back while it runs.

We recommend that you download DBAN and follow its instructions for securely wiping your drive. How to wipe a Mac hard drive You can wipe your Mac's startup drive using the Disk Utility ...

A drive erasure method that provides a fast way to delete all the data quickly when required. Instant secure erase (ISE) encrypts the drive, and when it is time to permanently delete all the data ...

The brute force crypto-erase feature further enhances the drive ... 4.5 Total A superb, pocket-sized secure hard drive that you can take anywhere, knowing the contents will remain safe.