Tutorial to unformat external hard drive

In this article, we will introduce the method to unformat external hard drive. After reading, I believe you will not be troubled in data loss due to format any longer and know how to recover data from formatted external hard drive.

Case of Data Loss Due to Format

As a PC technician, I always help people solve their problems about computer. Recently I often receive calls requiring about method to unformat external hard drive or solution for data loss in external hard drive. Today I will illustrate a typical method to unformat external hard drive by the following case from Robin.

Win Version
Mac Version

Yesterday Robin called me in rush, "I wrongly formatted my external hard drive morning and forgot to backup a very crucial folder with crucial data for the meeting of our operation. How do I unformat the external hard drive to recover data?"

By definition, the act of wrongly formatting the external hard drive erased everything on the drive, of cause, Robin call me so anxiously for method to unformat the external hard drive.

However, It's lucky for Robin, I just told him not do any operation on the formatted external hard drive, because the faster he unformat the external hard drive, the more chances he could recover data.

Method to unformat external hard drive

Before I introduced the method to unformat external hard drive to Robin, I told him to pay attention to several points.

He mentioned that he forgot to backup a crucial folder in the external hard drive. The first lesson he should walk away from the experience is simple: backup, about which I mean regular, periodic backup and backup data to a stable external hard drive.

Second, before calling me for the method to unformat the external hard drive, he tried to use one-key-restore to recover data from the external hard drive. I told him that one-key-restore is used to restore data in system partition, but not used to recover data from external hard drive. And do not try to format hard drive and restore system partition so easily.

I also told him some knowledge about format. Quick format simply erases the hard disk's root directory, twiddles a couple of other things, and you're done. Note that it did not actually go out and overwrite files. Normal format actually goes out and overwrites all of the data on the disk. You'll know you're performing a normal format as it takes a long time.

If we have done a quick format to external hard drive, then there is more chance for us to unformat the external hard drive to recover data. What we need is just unformat software, and normal "undelete" utilities will probably not work. Here professional unformat software EaseUS Data Recovery Wizard is what we need. Here let's learn how to unformat external hard drive with Data Recovery Wizard.

Steps to unformat external hard drive

Step 1. Launch EaseUS Data Recovery Wizard and select the file types you want to recover. Then click "Next" button to move to the next step.

Choose the file types you want to unformat from the external hard drive

Step 2. Select the disk where you lost your data and click "Scan" button, the software will quickly scan the selected disk to find all your target files. If you lost your partition, select "Lost Disk Drives" and "Scan" to continue the recovery process.

Scan the selected disk to unformat external hard drive

Step 3. After scan, you can preview all the listed recoverable files one by one and select out those you want. Then, click "Recover" button to get them back once. Here you should save all the recovered files on another disk to avoid data overwriting.

Unformat external hard drive with EaseUS data recovery software

Besides external hard drive, we also can use Data Recovery Wizard to unformat and undelete other storage media such as RAID, internal hard drive, USB flash drive, digital camera, digital audio player, memory stickSD card, compact flash, etc. under Windows.

Win Version
Mac Version

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