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Recover External Hard Drive That Is Not Recognized

Updated on Dec 01, 2017 by Abby Haines to Storage Media Recovery


EaseUS hard drive data recovery software can help you easily recover hard disk data when it is not detected or recognized. Try it to solve external hard drive not recognized problem without data loss.

A handy external hard drive is definitely helpful for data backup or data transfer. But sometimes it also brings trouble when it is not recognized or detected by the computer.This usually happens with some error messages like "the drive is not formatted", "The drive cannot be accessed", "RAW drive is not initialized" etc when the drive is corrupted, faulty due to improper usage or simply because the disk has been used for too many times.

What is the best way to recover data from hard disk which is not detected?

Usually, there are three major reasons that Windows cannot recognize your hard drive: a hardware issue with your computer's USB port; a driver problem with your Windows computer; the drive becomes dead.

So, first, please connect your external hard drive to another computer and test if it is the USB port problem. If it works on another computer, you should fix the USB port. Otherwise, you need to try the following methods to fix external drive not recognized issues and retrieve data.

Note: If your hard drive cannot be detected in Disk Management or My computer, EaseUS data recovery software won't work. Please make sure you have solved the Not Detected Problem before doing data recovery.

Case1: if your hard drive is not showing or detected in My Computer or Disk management, then we should first solve this problem.

Sometimes, the external hard drive doesn't appear in your Computer window but list in the Disk Management window because it doesn't contain any partitions. So, first press Windows Key + R, type diskmgmt.msc into the Run dialog, and press Enter to check if the dive show up in Disk Management.

Version comparison of Ontrack data recovery software

If you do see the drive here, you can first perform external hard drive recovery to restore data from the disk by using EaseUS data recovery software and then format it properly. So Windows or your other devices can access and recognize it.

If the drive doesn't show up in Disk Management after you've tried another computer, you may try the Device Manager. To do it, you need press Windows Key + R, type "devmgmt.msc" into the Run dialog, and press Enter.

Version comparison of Ontrack data recovery software

Look under Disk drives and check for any devices with a yellow exclamation mark next to them. If there was a yellow mark, it can be sure the drive has a driver problem. Right-click the device the drive and select Properties, and look at the error message. This error message can help you fix the problem.

Case2: what if Windows asks you to format the disk or the hard drive becomes raw. You can not access it.

First, DO NOT do as Windows requires. If you did so, all data in the drive would be lost. You should take immediate action to get those important data out from the inaccessible hard drive and then format it. A data recovery tool will be a good helper to recover data from the RAW drive. EaseUS Data Recovery Wizard is the best tool to make hard disk recovery and recover data from any data loss situations. It can help you get lost data back with simple clicks.

Step 1. Connect the external hard drive to PC, launch EaseUS data recovery software, select the disk and click "Scan" to search for all the lost and existing files.

Step 2. A quick scan will start first. After it completed, a deep scan will automatically launch in order to find more files.

Step 3. After a scan, choose the lost data found by this recovery tool and click "Recover" button to retrieve them back. Here, you'd better save all the recovered files on a different drive or device in case of data recovery failure.

Selectively recover data from hard disk which is not detected