While Windows 10 is an efficient operating system, it is not free of the occasional technical issues. One example is the UDFS_FILE_SYSTEM (0x0000009B) error. This problem is usually accompanied by a Blue Screen of Death (BSOD).

What Is the Error Code 0x0000009B?

Before learning how to remove the UDFS file system BSOD, you have to understand why they occur in the first place. The Bug Code 0x0000009B is an error message that indicates a problem with the UDF file. Since it comes with a BSOD, it can render your PC useless.

Some of the reasons why the error appears include corrupt disks and bad sectors. It could also be because of a malfunction within the IDE and SCSI drivers, which affects the system’s ability to read and write to the disk properly. These issues result in the UDFS_FILE_SYSTEM error that you see on your screen.

Another thing that might cause the 0x0000009B bug is insufficient space in the non-paged pool memory. It can be challenging to figure out the exact trigger for the blue screen error. However, you can follow the solutions in the next section. You do not need to use all the methods. Just try each one until you find the fix that works for you.

How to Fix the 0x0000009B Error on Windows 10

In this section, we will show you how to fix the blue screen of death causes.

  1. Check if there is data corruption
  2. Repair the corrupted hard drive to fix the UDFS FILE SYSTEM
  3. Update the drivers to the latest versions
  4. Check for hardware and cable damage
  5. Repair any non-paged pool memory error
  6. Check for and download available Windows patches
  7. Use DISM to restore your computer’s health
  8. Fix UDFS FILE SYSTEM by running the System File Checker

We will explain these fixes in detail below.

Solution 1: Check if There Is Data Corruption

When there is data corruption, it usually manifests as your system or apps being unable to access files stored within the hard drive.

If a file is corrupt, it becomes unreadable and inaccessible. In more severe cases, the system crashes, and the Blue Screen of Death appears with the 0x0000009B bug code. When this code is displayed with the UDFS_FILE_SYSTEM error message, it signifies that the problem is related to the UDF. This is caused by missing files, incorrect order, and lost or damaged data elements, among other factors.

To access the utility and check if there are errors that you need to repair, follow these steps:

  • On your keyboard, press the Windows + E shortcut keys to open up File Explorer.
  • In this new window, locate and right-click on the C: drive. Now, select the Properties option.
  • Click on the Tools tab and choose the Check button situated under the Error Checking option.

If you have followed the steps above accurately, you will have to deal with one of these two scenarios:

Scenario 1:

  • If there is an error or data corruption present within the system, you will receive a prompt asking you to check the disk. At this point, tick the checkbox next to the “Automatically fix file system errors” option, and then choose the Start button.
  • If the disk you want to repair is currently in use, a pop-up message will appear to notify you. You can then click on the option to Schedule disk check for later.
  • From here, close down any running program or app and then restart your PC.
  • Immediately after the reboot, the disk-checking tool will begin the process automatically and will present you with the results once it is done.

Scenario 2:

  • If no data corruption is detected, a message will come up that reads, “You don’t need to scan this drive.” At this point, you can use the advanced disk-checking tool to perform diagnostics. To run this process, select Scan Drive.
  • When the scanning process is complete, you will get another message telling you whether an error was detected. If corrupt files are found, choose the option that reads, “Restart your computer to repair the file system.” You can choose to reboot your PC immediately, or you can schedule the checking and fixing to occur the next time you perform a restart.

Note: If you want to view the Event log, select Show Details located at the bottom.

Solution 2: Repair the Corrupted Hard Drive to Fix the UDFS FILE SYSTEM

Although they might seem similar, this solution is quite different from the first fix described above. This method involves using the chkdsk command line instead of the error checking utility.

There are different phases for checking errors. They include:

  • chkdsk, which works in read-only mode,
  • chkdsk /f, which comes into effect when you select Automatically Fix File Errors,
  • and chkdsk /f/r, which works to recover bad sectors.

However, the chkdsk /f/r command line performs a more detailed search and analysis of all the files existing within the hard drive. It also checks empty spaces to find and repair any system file with structural corruption. While using this process takes more time, it is definitely worth a try. Many Windows 10 users have reported that they were able to fix the blue screen error with this solution.

Follow these steps carefully:

  • From the taskbar, open the search icon and enter the following command line into the search box:


  • Now, from the right flyout, select Run as administrator.
  • From the User Account Control, choose the Yes button when prompted.
  • Then, enter this command line and press the ENTER key on your keyboard:

Chkdsk /f /r

  • Next, type Y and hit the ENTER key to confirm your input.

Restart your PC and wait patiently while Windows checks if there is any corruption within the hard drive. If anything is detected, it will attempt to fix it and also repair the UDFS FILE SYSTEM.

Solution 3: Update the Drivers to the Latest Versions

System drivers are essential to the optimum operation of your computer. When they are outdated or missing, they cause many problems like glitches and minor errors. These problems are noticeable, especially when you connect external drives.

In some cases, broken or outdated driver versions cause your computer to display the blue screen UDFS_FILE_SYSTEM error. This is because the system needs the drivers to recognize and access the hardware.

In addition, if you have installed a driver that is incompatible with Windows 10, you might also encounter the 0x0000009B error code.

The good news is that it is easy to locate and fix corrupt, missing, or outdated drivers. You can update them to the latest compatible version. There are two ways in which you can do this:

  1. Manually
  2. Automatically

Method 1: Manually

This method requires you to use the Device Manager.

  • On your keyboard, press the Windows+S shortcut keys to open the search box.
  • Type “devmgmt.msc” (no quotes) and choose Device Manager from the search results.
  • Check for any device that has an exclamation mark and expand it by double-clicking on it.
  • Now, right-click on the faulty device and click on the Update Driver option.
  • From here, follow the on-screen instructions step-by-step to complete the process.
  • Repeat this for every other outdated driver to restore optimum functionality.

Method 2: Automatically

You can execute this process automatically if you do not want to carry out the tedious task of manually locating and updating outdated drivers. It can be challenging to identify and repair them one after the other.

Not only is it time-consuming tying to repair broken drivers manually, but it is also quite stressful. There are tools that can automate the process and fix all broken drivers with just the click of a button.

Auslogics Driver Updater is a state-of-the-art program that prevents conflicts within your device and ensures the smooth running of your system. Simply download and install the app to quickly detect all outdated, broken, or missing drivers on your PC. It will present you with a complete result on what needs fixing. You have the option to update everything to the latest manufacturer-recommended version automatically.


Resolve PC Issues with Driver Updater

Unstable PC performance is often caused by outdated or corrupt drivers. Auslogics Driver Updater diagnoses driver issues and lets you update old drivers all at once or one at a time to get your PC running smoother

Auslogics Driver Updater is a product of Auslogics, certified Microsoft® Silver Application Developer

You do not need to stress yourself about singly locating and updating each faulty driver. Auslogics Driver Updater does all that for you. It saves you time, ensures that all the drivers are compatible with your Windows 10 device, and even backs up old drivers. This way, you can easily return to previous driver versions if you do not like the updated ones.

Auslogics Driver Updater has been put through series of tests to confirm its safety and effectiveness. It is recommended by IT experts and used by PC manufacturers.

Solution 4: Check for Hardware and Cable Damage

With continuous usage, peripherals linked to your PC, such as cables and hard drives, will eventually wear out. In such instances, you have to change them and get new ones. If you fail to do this, it can lead to faulty driver installations. Also, it could be that you did not connect the cords to your computer properly.

So, to resolve this problem, you need to reset all the connectors linked to your PC to ensure that your cables are not loosely plugged in. In addition, if you are running any SCSI drives, you need to check and confirm that you terminate them correctly.

Another thing that you can do is to test your drive on a different system that works fine. This helps you to confirm that your drive is not the cause of the blue screen error. The most common reason for the UDFS_FILE_SYSTEM is broken hardware.

One of the many ways you can check for faulty hardware is to assess the temperature of all accessories connected to your PC. If they are hot, this indicates that you have a thermal hardware problem. You can either take it to a professional to fix it or get a new one.

Random Access Memory (RAM) failure is another common reason why you can have the 0x0000009B bug code. To check for this, follow these steps below:

  • The first step is to save and close any running processes.
  • Go to Windows search, input Windows Memory, and press the ENTER key.
  • In the new window, select the ‘Restart now and check for problems (recommended)’ option.
  • Wait patiently for Windows to restart automatically and start running a check on the RAM.
  • When it is done scanning the RAM, you will receive a report of the action on the notification bar.

If this method does not resolve the blue screen error, move to the next fix.

Solution 5: Repair any Non-Paged Pool Memory Error

System drivers allocate space on your disk drive that should remain unused even when the system runs out of free storage memory. This is called the Non-Paged Pool Memory. When this is full, it causes several errors, some of which include the Blue Screen UDFS FILE SYSTEM error, which causes your PC to stop functioning properly.

You can either get an additional storage memory or attempt to fix the malfunctioning disk drive:

  • Press Windows Key + R and enter the command “regedit.exe” (no quotes). Press the OK button.
  • If you get a UAC prompt, select Yes.
  • Locate the following directory:

Computer\HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\Session Manager\Memory Management

  • Once you find it, navigate to the right-hand side and locate NonPagedPoolSize DWORD key.
  • Now, select Decimal by clicking on the icon next to it.
  • Go to the Value data box and type in 192. Press the OK button to confirm your changes.
  • Go to the following location:


  • Navigate to the right side of the screen to locate Start. Right-click on it and choose Modify.
  • In the Value data box, type in 4 and select OK.
  • Finally, restart your PC to see if the error has been resolved.

Solution 6: Check For and Download Available Windows Patches

You should make it a habit to install Windows updates regularly. Microsoft normally releases patches to fix problems reported by users. Therefore, downloading and installing the latest version updates is one way to resolve the blue screen error automatically.

Depending on your system settings, your computer should perform updates automatically. However, if this is not the case or, for some reason, you mistakenly turned off this future, then you need to check for recent patches manually.

  • On your keyboard, press Windows Key + I. On the new page, locate and select Update & Security.
  • Navigate to the right side of the screen and choose the ‘Check for updates’ option.
  • If there is any recent update available, click on the Download button and follow the on-screen instructions to install it.

You can now check to see if the error has been fixed. If the blue screen persists, move to the next solution on the list.

Solution 7: Use DISM to Restore Your Computer’s Health

You can use this tool to repair common errors that occur on Windows 10, including the Blue Screen of Death 0x0000009B error. To execute the needed command line:

  • Open Windows search and type “cmd” (no quotes).
  • From the search results, go to Command Prompt and right-click on it.
  • Choose to open it as administrator; type in the command line below and press the ENTER key:

DISM.exe /Online /Cleanup-image /Restore health

Check if the blue screen error has been fixed.

Solution 8: Fix UDFS FILE SYSTEM by Running the System File Checker

It is common for critical system files or DLL items to go missing. This could happen by accident, or it could be intentional. Whichever it is, the absence of these data can result in system malfunction or crashes.

To locate and restore any missing component, you can use the System File Checker tool.

  • Right-click on Start and select Run from the list.
  • Type “cmd.exe” (no quotes) into the dialog box, and then press Ctrl+Shift+Enter simultaneously.
  • If a UAC prompt comes up, choose the Yes option.
  • Now, type “Sfc /scannow” (no quotes) and press the ENTER to run it.
  • Wait patiently for the process to be completed and then check to see if the problem has been fixed.


The solutions explained in this article are recommended fixes used by other Windows 10 users to resolve the UDFS_FILE_SYSTEM” (0x0000009B) error. If you followed the steps described in this guide correctly, your computer should be back to normal by now.

Do you have other methods that helped you to resolve the Blue Screen of Death on your PC? You can share that with us in the comment section below.

If you have questions or need clarification, we would love to hear from you as well. Do not forget to install the Auslogics Driver Updater to keep your drivers regularly updated for optimum PC performance.