Fix: FAT_FILE_SYSTEM error on Windows 10

By: Milan Stanojevic
5 minute read

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FAT_FILE_SYSTEM is a Blue Screen of Death error, and just like any other BSoD error it will restart your PC in order to prevent damage. This error is usually caused by your hard drive, and today we’re going to show you how to fix FAT_FILE_SYSTEM error on Windows 10.

Fix FAT_FILE_SYSTEM BSoD error on Windows 10

Quick solution to fix various PC errors

  • Step 1: Download this PC Scan & Repair tool
  • Step 2: Click “Start Scan” to find Windows issues that could be causing BSOD errors in Windows 10
  • Step 3: Click “Start Repair” to fix all issues (requires upgrade).

Solution 1 – Update your Windows and drivers

Most commonly BSoD errors are caused by outdated or incompatible drivers, so in order to fix this problem we urge you to download the latest drivers for your motherboard, chipset, graphic card and other devices that you have installed. You can download all the necessary files from the manufacturer’s website.

In addition to downloading the latest drivers, it’s also rather important to download and install Windows 10 updates. Microsoft is working hard on finding and fixing the hardware and software conflicts, and in some cases FAT_FILE_SYSTEM can be fixed by performing a Windows 10 update.

Easiest way to fix many BSoD errors is to update your drivers. Updating drivers manually can be a tedious process, but you can use this Driver Update software to download all the necessary drivers with just a single click.

Solution 2 – Try starting your computer with only one hard drive

As we already mentioned FAT_FILE_SYSTEM is usually caused by your hard drive, and 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 to remove any additional memory cards and USB drives that you might have connected to your PC. If the FAT_FILE_SYSTEM BSoD error is fixed after disconnecting additional hard drives, you can turn off your computer and try reconnecting them one by one until you find the one that is causing FAT_FILE_SYSTEM error to appear.

Solution 3 – Check your hardware is working properly

Blue Screen of Death errors can be often caused by a 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.

Solution 4 – Uninstall Folder Protect and Folder Lock software

Certain folder protection and encryption software can cause FAT_FILE_SYSTEM to appear. According to users, software such as Folder Protect and Folder Lock can cause BSoD error since their encryption method interferes with your hard drive. If you use these any of these tools, only solution is to uninstall them from your computer.

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 do the following:


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This software will repair common computer errors, protect you from file loss, malware, hardware failure and optimize your PC for maximum performance. Fix PC issues now in 3 easy steps:

  1. Download this PC Repair Tool rated "Excellent" on TrustPilot.com.
  2. Click “Start Scan” to find Windows issues that could be causing PC problems.
  3. Click “Repair All” to fix all issues with Patended Technologies (requires upgrade).

  1. While your computer boots restart it. You’ll have to repeat this step few times before your PC starts Automatic Repair process.
  2. Choose Troubleshoot > Advanced options > Startup settings and click on Restart. When your computer restarts, press F5 or 5 to access Safe Mode with Networking.

After accessing Safe Mode you should be able to delete the problematic software without any problems.

Solution 5 – Uninstall your antivirus software

Due to incompatibility issues, certain antivirus software can cause FAT_FILE_SYSTEM error to appear. If you are having this error on Windows 10, we advise you to remove your currently installed antivirus software and check if that fixes the issue.

If the issue persists even after the antivirus software is removed, you might have to use 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 a different antivirus software on your PC. We did a list of best antivirus programs for Windows 10 and we advise you to check it out.

Solution 6 – Reset Windows 10

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. To reset Windows 10, you’ll need to do the following:

  1. While your computer boots restart your PC couple of times. This should start the Automatic Repair.
  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. 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.
  4. The process of resetting will now start, so make sure that you don’t interrupt it.

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.

If you’re still having issues on your PC or you simply want to avoid them for the future, we strongly recommend you to download this tool (100% safe and tested by us)  to fix various PC problems, such as file loss, malware and hardware failure.

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

READ ALSO:

For various PC problems, we recommend this tool.

This software will repair common computer errors, protect you from file loss, malware, hardware failure and optimize your PC for maximum performance. Fix PC issues now in 3 easy steps:

  1. Download this PC Repair Tool rated "Excellent" on TrustPilot.com.
  2. Click “Start Scan” to find Windows issues that could be causing PC problems.
  3. Click “Repair All” to fix all issues with Patended Technologies (requires upgrade).

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