FIX: Second hard drive not detected in Windows 10

Radu Tyrsina
by Radu Tyrsina
CEO & Founder
Radu Tyrsina has been a Windows fan ever since he got his first PC, a Pentium III (a monster at that time). For most of the kids of his age, the Internet was an... Read more
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  • Secondary hard drives are an excellent way for you to extend the storage capacity of your PC without having to replace your main one.
  • Issues with unrecognized secondary hard drives are not uncommon, and that's precisely what we will be covering in the article below.
  • Make sure you save our Hard Drives Hub in your browser in case you may need assistance again.
  • For more in-depth information, check out our Peripherals Guides.
solve Second hard drive not detected in Windows 10
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Most of us probably use only one hard disk drive in the computer, but some people who need more space tend to use two, as well.

Some of the users who are using a second hard drive have reported that their computer isn’t able to detect the second one after Windows 10 upgrade.

Therefore, we came up with a couple of solutions that will solve the problem.

First thing first, you should open your computer once again and check if your hard disk is properly connected. If you’re not sure what to do, check out this article for additional info.

If everything is connected right, but you’re still facing the issue with detecting your second hard disk drive, try one of the following solutions.

What can I do if Windows 10 doesn’t detect the second hard drive?

1.  Check for the driver updates

1.1 Update drivers manually

  1. Go to Search, type device manager and press Enter.
  2. Expand Disk drives, find the second disk drive, right-click on it and go to Update driver software.hard disk drive update windows 10
  3. If there are any updates, follow further instructions and your hard disk driver will be updated.
  4. You can also go to Settings> Update and check if overall updates offer something for your hard drive.

If your computer was able to recognize the second hard disk before the Windows 10 upgrade, there’s a possibility that your current hard disk drivers are not compatible with Windows 10.

1.2 Update drivers automatically (suggested)

If you want to fix this type of issues, it’s crucial to keep your drivers up to date.

However, downloading drivers manually can be a long and tedious process that might affect your PC (if you hit the wrong button).

Run a System Scan to discover potential errors

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Run a PC Scan with Restoro Repair Tool to find errors causing security problems and slowdowns. After the scan is complete, the repair process will replace damaged files with fresh Windows files and components.

Therefore you might want to use this cutting-edge software that automatically downloads and installs the necessary drivers.

Some of the most common Windows errors and bugs are a result of old or incompatible drivers. The lack of an up-to-date system can lead to lag, system errors or even BSoDs.To avoid these types of problems, you can use an automatic tool that will find, download, and install the right driver version on your Windows PC in just a couple of clicks, and we strongly recommend DriverFix. Here’s how to do it:

  1. Download and install DriverFix.
  2. Launch the application.
  3. Wait for DriverFix to detect all your faulty drivers.
  4. The software will now show you all the drivers that have issues, and you just need to select the ones you’d liked fixed.
  5. Wait for DriverFix to download and install the newest drivers.
  6. Restart your PC for the changes to take effect.


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Disclaimer: this program needs to be upgraded from the free version in order to perform some specific actions.

2. Change driver letter and path

  1. Right-click on This PC
    • It’s probably on your desktop, but you can access it from the File Manager, as well.
  2. Click on Manage and Management window will show management windows 10
  3. Go to Disk Management.
  4. Find your second hard disk drive, right-click on it and go to Change Drive Letter and Paths.change drive letter windows 10
  5. Go to Change and choose the letter for your partition from Assign the following drive letter:.assign drive letter wind8apps windows 10
  6. Click OK, close all windows and restart your computer.

Maybe your hard disk is properly connected and works well, but if it doesn’t have a letter by its name, you won’t be able to access it from This PC.

So, we’re going to change the drive letter and hopefully, the hard disk will show up again.

3. Recover damaged Windows hard drive

In many cases, users need their second hard drive in order to recover their data from it. If it is not detected, we recommend you use data recovery software.

Stellar Data Recovery is an advanced backup and recovery software that allows users to perform complex recovery tasks with ease.

With cross-platform compatibility to match all storage devices, a convenient Scan & Resume Recovery option for extra flexibility and all the features you could dream of, this tool does more than your average app.

And we do mean it – the stellar recovery power spreads beyond easy file recovery and retrieves your data from the most unfortunate scenarios including formatted, corrupted, and/or encrypted drives with unparalleled accuracy.

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If you have some important data on your external HDD, be sure to try one of these tools. If you’re not happy with them, you can find additional ones in the link below.

That would be all.

If you have any comments or suggestions, feel free to reach for the comments section below.

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Frequently Asked Questions

  • Each hard drive requires one drive letter per partition, and there are 24 drive letters. As such, you can have up to 24 hard drives.

  • The main advantage of secondary hard drives is that while one that is faster, such as an SSD, can be used for computing purposes, the slow ones can be used purely for storing personal data.

  • Setting aside the 24 hard drive limit, you will also need a power supply of sufficient capacity. If you want to see if your PC can cut it, then use one of these tools.