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How to Fix Hard Drive not Detected Problem

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Introduction

Some Windows users have experienced a situation where a hard drive is not detected after upgrading to Windows 10. Hard drive not detected issue could be caused by a number of things:

  • Your BIOS Settings
  • Physical Hard drive connection settings
  • Hard drive drivers

Based on my experience and how a number of other users have fixed “hard drive not detected” issue, I have recommended 4 fixes in this guide.

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5 Ways to Fix “Hard Drive not Detected” Problem

Some of the recommendations in this guide are very specific to fixing “Hard Drive not Detected” problem after an upgrade. But, the solutions will work for any other situation.

Here are the fixes:

1
Check that the Disk is Online

Before we get to the tough bits, lets do the basic stuff. Check that your second disk is not offline. If the disk is offline, the hard drive will be not detected.

Here is how to check:

  • Press Windows logo + R keys on your keyboard. This will open Run command.
  • At the Run command, type diskmgmt.msc then click OK.
hard drive not detected
  • When Disk Management opens, look at the disks on the left pane of Disk Management tool. If the disk has a red circle, it may mean that it is offline.
hard drive not detected
  • To bring the disk online, right-click it. Then select Online. The disk will come online and the red circle will no longer be there.
hard drive not detected

The hard drive will now be detected by the computer and becomes available in “This PC”.

If at this point, the hard drive is not detected, then try the next fix.


2
Convert the Drive to GPT, Change BIOS to UEFI Boot

If you have two drives on your computer, one GPT and the second MBR, the second drive may not be detected. Some users have reported fixing hard drive not detected issue by converting both drives to GPT.

The fix requires a 2-step solution:

  1. Convert the second hard drive from MBR to GPT
  2. Change your computer from Legacy to UEFI boot

Here are the steps:

When you get to Troubleshoot screen, click Troubleshoot. Then proceed with the steps below.

  • Then click Advanced options.
  • When Advanced options opens, click Command Prompt.
Warning!
Before you proceed with the next steps, connect your drive to another computer and BACK IT UP! When you convert from MBR to GPT, you are likely to lose you data.
  • At Command Prompt, to confirm that the drives meet the requirement, type this command. Then press Enter.
mbr2gpt/disk:1/validate 
  • To convert the drive, type this command and press enter.
mbr2gpt /convert 

You can also convert MBR disk to GPT using DISKPART. To use this method, execute these commands in order.

DISKPART
LIST DISK
SELECT DISK 1

Change 1 to the disk number of the drive you are converting.

CONVERT GPT

After converting the drive to GPT, boot to BIOS and change change to UEFI boot.

If you do not change your boot to UEFI in BIOS, your computer may not boot!

When you boot your computer, “hard drive not detected” issue should be resolved.

But if your hard drive is still not detected, try the next fix.

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3
Install the Vendor’s Driver for your Hard Drive

If you have tried fixes 1 and 2 but your hard drive is still not detected the next step is to download the driver for the hard driver and install it.

For instance if you use a Seagate hard drive, visit their website (usually Support.domain.com). Then search for and download the driver. Finally, install the driver, restart your computer and see whether the drive is detected.

If your hard drive is still not detected, the final undesirable fix is to…

4
Perform a Fresh Install

As part of your fresh install, perform the following:

  1. Make your BIOS UEFI boot, instead of Legacy.
  2. Format the drives as GPT.

We have another guide with detailed steps by step to install Windows 10.

Conclusion

One of the 4 fixes in this guide should resolve “hard drive not detected” problem for you.

Kindly take 1 minute to share the fix that worked for you as this will help other users. Use the “Leave a Reply” form at the end of this page.

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