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How to Permanently Erase Sensitive Data before Selling a Computer or Digital Device?

Before we purchase a new computer, we may need to dispose the old computer. But, we have stored thousands or even more files on the hard drive of the old computer, some of them are very private. We can’t just sell or donate the old computer without destroy our private data including photos, documents, videos, emails, etc.

Some of computer users only delete the files and empty the recycle bin or format the entire hard drive on the old computer. But, this is not the right way to permanently destroy data because free data recovery software (such as DoYourData Data Recovery Freeware) can easily and completely recover deleted or formatted data.

Is there any way to permanently erase data before selling old computer or digital device?

Yes, data erasure software is the right way to permanently erase data from hard disk drive or digital device in safe and efficient way. There are some data erasure programs on the market. We find some of them are very difficult to use. For common users, DoYourData Super Eraser is a good choice. This data erasure software offers certified data erasure method to securely and permanently erase data from any type of hard drive and digital device.

Permanently erase data with DoYourData Super Eraser

DoYourData Super Eraser offers government & military level data erasure algorithms, including HMG Infosec Standard 5, Baseline; DOD 5220.22-M; U.S. Army AR380-19; Peter Gutmann’s algorithm. It can securely and permanently erase targeted data from PC/Mac, HDD/SSD, USB flash drive, digital camera, memory card, RAID, Server, music player, and other digital device. It is very easy to use.

Moreover, DoYourData Super Eraser offers flexible data erasure modes to help in erasing data in various situations.

Mode 1: Selectively erase files/folders.

This mode can directly shred files or folders from hard disk drive or external storage device. Users only need to add the targeted files/folders to the erasure list, then click on “Erase Now” button to permanently erase the selected files/folders.


Mode 2: Wipe entire hard drive.

Before selling a computer, it is recommended to wipe all data on the hard drive. This mode will help the users completely wipe all data from the hard drive, without leaving any trace.


Mode 3: Wipe free disk space.

This mode is designed for erasing already deleted data. The deleted files are stored on the free disk space of the hard drive, this mode can permanently erase the already deleted data without erasing the current data on the hard drive.


The three flexible data erasure modes can help computer users securely and permanently erase sensitive data before selling or disposing a computer. It will not cause any physical damage. Once the data is erased by DoYourData Super Eraser, the data is gone forever, can’t be recovered by any data recovery software. DoYourData Super Eraser also offers other tools: Uninstaller and Internet Cleaner.

The uninstaller can help in completely uninstalling programs on computer and cleaning up all leftovers. The internet cleaner can clean up internet privacy including browsing history, password, cookies, etc.

Ann Castro
Ann Castro
Ann Castro is a lead author at Techicy who writes on Technology, Home Improvement, and Businesses around the world. With a background in Journalism, Ann has a professional experience of more than seven years working with some of the big media companies. She is also an avid traveler, a singer, and a guitarist.


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