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FAT FILE SYSTEM error in Windows 10 [FULL FIX]

However,  the DISM tool can fail on Windows 10. If this happens to your computer, you can take a look at our dedicated guide in order to fix the issue.

5. Try starting your computer with only one hard drive

portable hard drive attached samsung t5 ssd not recognized

As we already mentioned FAT FILE SYSTEM is usually caused by your hard drive. You can sometimes fix this problem by disconnecting your second hard drive and starting Windows 10 without it.

If you don’t have two or more hard drives, you can skip this solution and try a different one.

In order to disconnect your hard drive, you’ll have to open your computer case and disconnect the power cable that connects to your hard drive.

Make sure to do this for all hard drives except for the one that has Windows 10 installed on it.

In addition to internal hard drives, users are suggesting removing any additional memory cards and USB drives that you might have connected to your PC.

If the error is fixed after disconnecting additional hard drives, you can try reconnecting them one by one until you find the one that is causing FAT FILE SYSTEM error to appear.

Your external HDD is broken and you want to get a new one? Check our guide including the best USB 3.0 external hard drive deals.

6. Check your hardware is working properly

Blue Screen of Death errors can be often caused by faulty hardware, and if that’s the case, you should find the faulty hardware and replace it.

If your hardware is new and recently installed, it could be that it’s not compatible with your PC.

In case you don’t have any recently installed hardware, this means that your current hardware isn’t working properly.

Few users reported that a faulty motherboard is the cause of this issue, so make sure to check your motherboard.

Bear in mind that almost any other hardware can cause this issue, and if you need help in diagnosing the faulty hardware, it’s best that you take your PC to the repair shop.

7. Uninstall Folder Protect and Folder Lock software

  1. While your computer boots restart it. You’ll have to repeat this step a few times before your PC starts Automatic Repair process.Keyboard works in BIOS and not in Windows
  2. Choose Troubleshoot > Advanced options > Startup settings and click on Restart.
  3. When your computer restarts, press F5 or 5 to access Safe Mode with Networking.

Certain folder protection and encryption software can cause FAT_FILE_SYSTEM to appear. If you use any of these tools, the only solution is to uninstall them from your computer.

According to users, software such as Folder Protect and Folder Lock can cause BSoD error since their encryption method interferes with your hard drive.

Few users reported that they can’t even access Windows 10, so they cannot uninstall this software.

If FAT FILE SYSTEM error prevents you from accessing Windows 10, you can try to uninstall these tools from Safe Mode. To access Safe Mode you need to follow the above steps.

Windows 10 Safe Mode not working? Don’t worry, use our step-by-step guide to easily fix the issue.

8. Uninstall your antivirus software

Due to incompatibility issues, certain antivirus can cause FAT FILE SYSTEM error to appear. If you are having this error, we advise you to remove your currently installed antivirus software.

If the issue persists even after the antivirus software is removed, you might have to use a special uninstaller to remove your antivirus software.

Many antivirus companies offer tools that will uninstall their antivirus software completely, so make sure that you download one of these tools and use it to remove your antivirus.

If removing your antivirus software fixes the issue, you should install different antivirus software on your PC.

However, sometimes you can’t completely remove software leftovers on Windows 10. We recommend you touse the solutions from our dedicated guide.

9. Reset your Windows 10

  1. While your computer boots restart your PC couple of times. This should start the Automatic Repair.Yellow Screen of Death in Windows 10
  2. Choose Troubleshoot > Reset this PC.
  3. You can choose between Keep my files and Remove everything options. The first option will install Windows 10 again, but it will not remove your personal files and folders.
  4. The second option will delete all files and folders that you have on your C drive. If the first option isn’t working for you, you can always repeat these steps and choose the Remove everything option.
  5. The process of resetting will now start, so make sure that you don’t interrupt it.

If all other solutions fail, you can reset Windows 10. Bear in mind that resetting Windows 10 will remove all your installed applications, so you’ll have to download and install them again.

If the reset option doesn’t help, you can always perform a clean reinstall and format your hard drive partition completely.

Bear in mind these procedures will delete some of your files and folders, so make sure that you have a backup available.

FAT FILE SYSTEM Blue Screen of Death error can be troublesome, but we hope that some of our solutions were helpful to you.

If you have any other suggestions that we should include in this guide or if you are dealing with other issues, please leave us a comment bellow.

This post was written by Milan Stanojevic and was first posted to WindowsReport

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