What is DoD 5220.22-M hard drive wipe?
DoD5220.22-M, also be known as “DoD standard”, is a software-based data sanitization method to wipe a hard drive and other storage devices by overwriting existing data on it. This hard drive wiping method is capable of peventing nearly all software-based recovery tool from listing data and information.
DoD 5220. 22-M wiping method was used in sheredding confidential papers of U.S. Department of Denfense(DoD) in 1995. This method was published by the U.S. Department of Denfense in the National Industrial Security Program Operating Manual, which described a process of overwriting a hard drive with a set of zeros, ones, and data through 3 passes.
Pass 1: Overwrite hard drive with zeros
Pass 2: Overwrite hard drive with ones
Pass 3: Overwrite hard drive with random data
These 3 passes make DoD level wiping method much secure that any previous method before. Nowadays, the DoD 5220.22-M is one of the most common data destruction ways to dispose of erasing a hard drive before people give away or dump it.
The Best DOD 5220.22-M Hard Drive Wiping Tool for Windows 10, 8, 7
Then, how can we clean a hard drive with DoD 5220.22-M standard? There is a powerful DoD hard drive software utility I highly recommending-AOMEI Partition Assistant Professional. It allows you to wipe your hard drive with DoD standard up to 7 times. Besides, it provides other 3 wiping methods: fill sectors with zeros, fill sectors with random data, and Gutmann.
This DoD hard drive wipe utility is designed for Windows operating systems, such as Windows 10/8/7, Windows XP, Windows Vista. And its intuitive interface makes all the operation very easy.
Just connect the hard drive you want to wipe with your computer, and you can download the demo version to see the detailed steps of DoD wiping a hard disk.
✍ Note: If there are some of the data on the hard drive you don’t want to lose, you can back up the hard drive before wiping it.
Step 1. Open AOMEI Partition Assistant, and right-click the hard drive you want to wipe by DoD. 5220.22-M. Then click “Wipe Hard Drive”.
Step 2. Then choose the “DoD 5220.22-M” as the wiping method, and decide the times you want to rewrite to the hard drive.
Step 3. Back to the main interface, and click “Apply” to perform DoD hard drive wipe.
Just wait for a while, the data on the hard drive will be completely erased.
1. Is DoD 5220.22-M secure?
Actually, there is still a very low possibility of recovering data from DoD hard drive wipe, but for individuals and most enterprises, the DoD 5220.22-M wipe method is secure enough. You may notice AOMEI Partition Assistant Professional also provides other hard drive wipe methods. You may want to know what difference between them is, below is a brief comparison.
● DoD 5220.22-M Vs Zero Fill or random data fill
To erase data on hard drive effectively, many users also try to zero-fill the hard drive or random data fill. They overwrite a hard drive with zeros or random data to prevent most software-based recovery tool. While the DoD hard drive wipe standard adopts further steps to overwrite a drive, it overwrites a hard drive up to 7 times. So DoD wipe is definitely safer than zero filling and random data filling.
● DoD 5220.22-M Vs Gutmann
Gutmann is another effectively way to wipe a hard drive, it erases data more thoroughly in contrast with DoD 5220.22-M. Guttmann performs 35 passes to overwrite a hard drive with higher security than DoD, but it also takes much longer to implement, particularly, today’s hard drives are produced with much larger capacity.Moreover, Gutmann overwrites hard drive so frequently that it gives the drive bigger wear than other ways.
On the whole, the DoD is relatively safe in the consideration of data security and hard drive itself maintenance.
2. How long does a DoD level wipe take?
It hard to say how long will it take, the capacity of your hard drive influent a lot. But generally, if you format a drive with 60GB, it will take 15 to 20 minutes, and a 250GB hard drive may take about 80 minutes to finish.
3. Can a SSD be wiped via DoD wiping method securely?
No, I'm afraid not. The way to write data on a SSD differ from that on a HDD, so they adopt different ways to overwrite stored data. Fortunately, AOMEI Partition Assistant also support performancing SSD secure erase to help you wipe a SSD safely.
To conclude, the DoD hard drive wipe method is a good way to clear a hard drive entirely. And also, other methods, like zero filling, Gutmann, can be also good ways, they have their own pros and cons, you can implement them with AOMEI Partition Assistant according to your demands.
And AOMEI Partition Assistant Server Edition is featured for Server users, if your computer is running with Windows Server system, please use the Server Edition.