How to Fix Hard Drive Not Detected/Recognized in BIOS Without Losing Data

Tracy King updated on Feb 22, 2020 to Storage Media Recovery | How-to Articles


This article provides you with feasible solutions to recover data from hard drive which is not detecting in PC and BIOS. If your ATA or SATA hard drive fails to show up on your PC or in the BIOS, recover data first with EaseUS Data Recovery Wizard, and follow tips here to repair a hard drive that is not detected in BIOS effectively.

The internal hard drive cannot be recognized by PC in BIOS, help!

"Hi guys, I'm having this problem that my second hard drive in PC fails to show up in PC. I tried some instructions to see whether it can be detected in BIOS, but nothing was found. 

The hard drive even disappeared from BIOS. What can I do? And how about the data saved in the drive? Do you know how to fix such a problem? If you do, please let me know. Thank you very much."

Are you having a similar problem that your data hard drive fails to show up on your PC or in BIOS? Don't worry! Right here in this article, you'll find quick fixes to restore data from an undetected hard drive and fix and repair an undetected/recognized hard drive in BIOS. Just follow the guide to get your problems solved right now.

Workable Solutions Step-by-step Troubleshooting
Fix 1. Several quick fixes 1. Reconnect hard drive; 2. Connect the hard drive to another desktop/laptop as a second HDD...Full steps
Fix 2. Some Advanced fixes 1. Enable BIOS connection by yourself; 2. update driver; 3. repair hard disk corruption...Full steps
Fix 3. Recover data Create a bootable disk > Boot from the bootable USB > Recover...Full steps

Quick fix: hard drive not detected by Windows BIOS

In this part, you'll get two effective and quick fixes to get data from a hard drive which is not detected or cannot be recognized in BIOS:

  1. 1. Reconnect hard drive to your PC to access the saved data.
  2. 2. Connect the hard drive to another desktop/laptop as a second HDD to get the data.

When the data cable is not connected properly to the hard drive or PC, your hard drive may not be able to show up on the PC even in the BIOS. Therefore, you can directly reconnect the hard drive to your computer's motherboard USB port, to see whether you can access the saved data.

Otherwise, you can retry to connect the hard drive to another working PC or laptop as a second HDD and then access to the saved data on the drive.

Fix hard drive not detected/unrecognized error in BIOS without losing data

If the above quick fixes don't help, don't worry. Try the three troubleshooting here: [1] Enable BIOS connection by yourself [2] update driver [3] repair hard disk corruption.

Fix 1. Reconnect hard drive and enable hard drive in BIOS

1. Shut down the PC and unplug the data cable from the hard drive properly.

2. Reconnect the hard drive with the data cable.

3. Restart the PC and press F2 to enter BIOS.

4. Enter Setup and check the system documentation to see whether the undetected hard drive is turned Off in System Setup or not;

5. If it's Off, turn it ON in System Setup.

6. Reboot the PC to check out and find your hard drive now.

Fix 2. Update hard drive driver for computer storage controller

To update hard drive drivers for your computer storage controller, you have three options here:

1. Update hard driver by contacting the manufacturer for help.

2. Download and update hard drive driver from manufacturer's website.

3. Manually update hard drive drivers in the Windows system:

  • Click the Start button > Type: Device Manager and hit Enter.
  • Select Device Manager, expand categories to find the name of your hard drive and right-click it.
  • Select Update Driver > Select Search automatically for updated driver software.

update driver

If Windows doesn't find a new driver for your drive, try to find the latest one on the device manufacturer's website.

If the above steps don't work, try reinstalling the drivers: Open Device Manager > Right-click on your hard drive and select Uninstall.

Then restart your PC and Windows will automatically reinstall the drivers on the hard drive for you.

Fix 3. Repair/fix internal errors that lead to hard drive won't show up by using CMD

After the hard drive is detected in BIOS, you can try to open it on your PC. If you still cannot open it on the PC, here you can run CMD to repair the internal hard drive error that causes the hard drive undetectable or unreadable by your PC:

1. Press Win + R to open a Run dialog and type: cmd to open Command Prompt by hitting Enter.

2. Type: chkdsk /f x: (x should be the drive letter of your undetectable hard drive.) and hit Enter to run the disk checkup process.

Click to copy

3. Type: exit to finish the process when the disk checkup process is finished.

If you don't have any technical know-how and want to minimize data risks, using third-party software could be a better choice. The Command line is suitable for computer professionals since wrong commands can cause severe problems. Therefore, we strongly recommend you try an automatic command line alternative.

EaseUS Tools M is a practical computer fixing tool that is safe and light-weighted. It's a perfect alternative to CHKDSK command. Use this one-click tool to solve your computer issues.

To fix file system error or disk error:

Step 1: DOWNLOAD EaseUS Tools M for Free and install it.

Step 2: Open the software and select the "File Fixing" option. 

On the right pane, choose the drive and check off the box at the bottom - "Check and fix file system error". Then, click "Fix" to start repairing the error.

Step 3: Wait until the operation completes. Wait until the operation completes. After the operation completes, click the "View" button to check the drive. 

select the drive and check off file system error

How to recover data from hard drive which is not detecting

If your hard drive is the system drive and it failed to boot from BIOS, you'll need to use the EaseUS Data Recovery Wizard with Bootable Media to follow the steps below and get your problems solved.

Step 1. Create a bootable disk.

Prepare an empty USB. If you have important data on it, copy the data to another device. When you create a bootable disk, the data on the USB will be erased. EaseUS Data Recovery Wizard WinPE Edition will help you create a bootable disk. Connect the USB drive to PC, launch EaseUS Data Recovery Wizard WinPE Edition. Select the USB drive and click "Proceed" to create a bootable disk.

create a bootable disk with easeus

Step 2. Boot from the bootable USB.

Connect the bootable disk to PC that won't boot and change your computer boot sequence in BIOS. For most users, it works well when they restart their computer and press F2 at the same time to enter BIOS. Set to boot the PC from "Removable Devices" (bootable USB disk) or "CD-ROM Drive" (bootable CD/DVD) beyond Hard Drive. Press "F10" to save and exit.

Step 3. Recover files/data from a PC/laptop hard drive that won't boot.

When you boot from the USB, you can run EaseUS Data Recovery Wizard from the WinPE bootable disk. Select the drive you want to scan to find all your lost files. 

selet the drive

Click Scan to start the scanning process.

let the software scan the drive

Recover data from the computer or laptop. After the scan completed, you can preview all recoverable files, select the targeted files, and click the "Recover" button to restore your files. You'd better save all of the recovered data to another place to avoid data overwriting.

recover data from the computer

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Frequently Asked Questions

1. Why choose EaseUS Data Recovery Wizard?

"EaseUS Data Recovery Wizard is the best we've seen. It's far from perfect, partly because today's advanced disk technology makes data-recovery more difficult than it was with the simpler technology of the past, but it's fast and efficient..."PCMag

"The first thing you'll notice about EaseUS Data Recovery Wizard Pro is that its interface is very clear and uncluttered, with only a small collection of self-explanatory controls. You won't find lots of extra options hidden in a system of hidden menus, either; what you see really is what you get."techradar

"Recover lost files, even after deleting a partition or formatting your drive."Macworld

2. Why cannot I recover 2GB data for free?

It is recommended to check the version installed is Free or Trial because they are different versions.

Trial has data preview function but cannot save any files, while the Free version enables to recover 2 GB files. The default free space is 500 MB and you may share the product on social media to get another 1.5 GB.

3. Why cannot the recovered files be opened?

A file is saved as 2 parts on the storage device: directory info (which is comprised by file name, time stamp and size info, etc.) and data content.

If the files with original file names and folder structures cannot be opened, one possible reason is the corrupted directory info. There is still a chance to recover the data content with the RAW Recovery method in our software.

4. Why isn't it suggested to recover the files back to the original drive?

The storage structure of the lost files would be altered or damaged by any changes on the drive. If you save the recovered files back to the same drive, the original data structures and data content would be corrupted or overwritten, which causes permanent data loss. So you should prepare another disk to save the files.

5. How can I check whether my data is recoverable or not before purchase?

The Free version helps you save 2GB files to better verify the recovery quality of our product before purchase.

6. How long does it take to scan the drive?

It strongly depends on the capacity of your hard drive and the performance of your computer. As reference,most drive recoveries can be completed in around 10 to 12 hours for a 1-TB healthy hard drive in general conditions.

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