The Blue Screen of Death (BSOD) error with FAT FILE SYSTEM (fast fat. sys) restarts the operating system to prevent further damage to the system. FAT FILE SYSTEM ERROR in Windows 10 is caused by outdated Windows OS, outdated device drivers, corrupt system files, corrupt disks, conflicting security/folder encryption applications, false anti-virus triggering, and corrupt Windows OS. To fix this error, perform the following solution.
What causes FAT file system error in Windows 10?
After a thorough analysis of various cases, our team of experts has identified the following causes of FAT file system error in Windows 10.
Outdated Windows: If your system’s operating system is not updated, it has various flaws that can lead to many types of errors, including the most common one.
Damaged system disks: If there are damaged sectors on the system’s hard drive, the system’s ability to read and write to the hard drive will be severely compromised, which can lead to the current error.
Faulty hardware: If any part of the hardware is faulty, the system may display the current error.
Outdated device drivers: Outdated device drivers can cause many problems with the system, including a FAT file system error in Windows 10.
Damaged system files: System files are necessary for the normal functioning of the system, and if the files required by the system are corrupted, you will suffer from the current problem.
Conflicting folder protection applications: These applications use encryption methods that conflict with the system’s hard drive. And if critical system files are corrupted/restricted, you may suffer from the current problem.
Anti-virus false positives: Anti-virus applications have been known to block access to necessary system files because they detect these files as malware, and these false positives can cause the system to generate the current error.
Corrupted Windows installation: Corrupted Windows installation can lead to many BSOD errors on the system,] including the current problem.
How to fix FAT file system error in Windows 10?
Updating Windows drivers
Corrupt or incompatible drivers are responsible for the fat_file_system error on Windows 10. In this case, you can solve the problem by installing the latest drivers. Please follow these instructions.
- Right-click the Start button and select Device Manager from the context menu.
- Find and expand the device driver you want to update in Device Manager. Right-click the driver and select Update Driver.
- On the next page, select Automatically check if the driver software is up to date. If Windows cannot find a new driver, you can try contacting the device manufacturer for the latest driver.
- If step 3 does not work, you should right-click on the device and select Uninstall. Then restart your computer. Windows will automatically reinstall the driver for you.
Check for defective hardware
Defective hardware can also cause Windows 10 file system errors. Therefore, you need to check if your computer is defective. If you find defective hardware, remove it as soon as possible.
- Disconnect all devices connected to your computer, except the boot drive, keyboard, and mouse, and then restart your computer to see if it is stuck in a reboot cycle. If this is not the case, you must perform the following steps to identify the defective hardware.
- One by one, connect the devices you just removed and restart your computer. If an error occurs, the defective hardware is detected.
- Once defective hardware is detected, test it on another computer that might be operating normally to see if it is damaged. If so, replace it with a new one.
Check the hard drive for bad sectors
Wrong sectors on your hard drive can cause many computer errors, such as 0xc0000185 boot configuration error, FAT file system error, Windows installation error, 0x80300024 error, etc. When a FAT file system error occurs, you can try to check if the disk contains damaged sectors.
This can easily be done using the “surface check” feature of a third-party program. Since your computer cannot boot normally, you will need to boot from bootable media.
Run Driver Verifier to find the problem drivers
Device drivers are the bridge of communication between your operating system and your hardware. If there is a configuration error, corruption, or compatibility issue with the device drivers, this can lead to many errors, such as a FAT file system error.
The driver check is a utility built into Windows that allows you to check if the drivers are working normally and if there are any errors in the drivers. You can perform the driver check by following these steps.
- Reboot your computer from the Windows installation media and set it as the first boot order. Confirm the operation, and then follow the on-screen instructions to go to the computer repair page. Navigate to Troubleshooting -> Command Prompt.
- In the pop-up window, enter a checkmark then press Enter.
- On the Driver Verifier Manager page, select Create Defaults.
- After selecting Automatically select all drivers installed on this computer, click Finish to complete the process. After that, Windows will automatically check for errors. If you are asked to restart your computer, do so.
- After your computer restarts, it will scan all of the drivers installed on your computer for problems. If it finds anything, it will notify you.
Fixing file system errors
A corrupted file system is also responsible for the Stop Code Fat File System error. Thus, the problem can be solved by fixing the file system errors. To do this, you will need a professional tool. A third-party program is safe and reliable. You also need to boot from the bootable media and fix the file system errors.
Frequently Asked Questions
- Update your Windows and drivers.
- Run the BSOD troubleshooter.
- Run an SFC scan.
- Run a DISM.
- Try to boot your computer with only one hard drive.
- Make sure your hardware is working properly.
- Uninstall your folder protection and blocking software.
- Remove your antivirus software.
Fastfat. sys is a driver for Windows. A driver is a small program that allows your computer to interact with connected hardware or devices. This means that the driver has direct access to the internal components of the operating system, hardware, etc., and therefore can directly interact with them. A free file information forum can help you determine if Fastfat.
The most common causes of file system corruption are incorrect startup or shutdown, hardware errors, or NFS write errors. Hardware errors can be a faulty unit on the hard drive, a faulty hard drive controller, a power failure, or an accidental system shutdown.
System Restore, by definition, only restores files and settings on your system. It does not affect documents, photos, videos, batch files, or other personal data stored on your hard drives. You do not need to worry about files that may have been deleted.