If you encounter the SYSTEM_EXIT_OWNED_MUTEX BOSD on your PC, you don’t need to worry. In this post, MiniTool Partition Wizard shows the possible causes of the blue screen error and provides some effective solutions to it.


The SYSTEM_EXIT_OWNED_MUTEX is a BOSD error accompanied by a bug check value of 0x00000039. After investigating extensive user reports and posts, we find that there are various reasons that may trigger the error. Here are some of the most common reasons:

  • Enabled HDMI devices
  • Corrupt system files
  • Obsolete audio drivers
  • Corrupt RAM
  • Insufficient storage space
  • Incompatible BIOS
  • Incompatible drivers
  • Disk errors
  • Viruses or malware infection


How to fix the SYSTEM_EXIT_OWNED_MUTEX BOSD error? This section lists 9 helpful solutions to fix the error. If you can boot into Windows, you can try these solutions directly. If you can’t, you need to boot into safe mode first.

To boot into safe mode, you can refer to this post: How to Start Windows 10 in Safe Mode (While Booting) [6 Ways].

Fix 1. Try Some Basic Tricks

Before you try some other solutions, you can try these basic tricks first. Some people use these basic tricks to fix the SYSTEM EXIT OWNED MUTEX error successfully.

  • Disconnect non-essential external peripherals
  • Update Windows and drivers
  • Perform a full scan via Windows Security

If all of these basic tricks are unable to help you fix the SYSTEM EXIT OWNED MUTEX error, you can go on and try the other fixes.

Fix 2. Disable HDMI and Reinstall Sound Driver

If there is some issue inside either the HDMI device or audio driver, you may also encounter the SYSTEM_EXIT_OWNED_MUTEX BOSD error. In this case, you can try disabling HDMI and reinstalling the sound driver to fix the error.  Here are the essential steps to work on:

  1. Open the Device Manager window.
  2. Locate and right-click on the HDMI device and select Disable device.
  3. Then restart your PC and check if the error is fixed.
  4. If not, open the Device Manager again.
  5. Expand the Sound, video and game controllers category.
  6. Right-click the audio driver and select Uninstall device.
  7. Once the uninstallation completes, restart your PC.

Fix 3. Ensure to Have Enough Disk Space

Insufficient storage space can also cause the blue screen error 0x00000039. In this case, you can run Disk Cleanup to get more free storage space. In addition, you can also use MiniTool Partition Wizard’s Extend Partition and Space Analyzer to get more free storage space.

It is a professional and functional partition software that can help you extend your partition, delete unwanted files, partition hard drive, check for disk errors, convert MBR to GPT, do data recovery, and so on.

MiniTool Partition Wizard DemoClick to Download100%Clean & Safe

Fix 4. Disable Non-essential Startup Programs

When you boot your PC, some of the programs you always use may boot together. However, any of them encounter errors that may cause your PC into BOSD. So, you can try disabling non-essential startup programs to avoid this error. Here’s how to disable non-essential startup programs:

  1. Open the Search window.
  2. Type “system configuration” and double-click the search result.
  3. Switch to the Services tab and tick Hide all Microsoft services.
  4. Next, hit Disable all.
  5. Go to the Startup tab and select the “Open Task Manager” link.
  6. Select and hit Disable for all apps that keep on running in the background.
  7. Get back to the System Configuration window and click Apply then OK.

Fix 5. Run SFC and DISM

Corrupted system files are also responsible for the blue screen error 0x00000039. So, you can run SFC and DISM to fix the error. Here’s how to proceed:

Step 1. Run Command Prompt as administrator.

Step 2. Type the command “sfc /scannow” and press Enter to run SFC.

Step 3. After the process is completed, restart your computer to check if the error is fixed. If not, proceed by initiating a DISM scan.

Step 4. Type the following commands one by one to run DISM, and press Enter after each command.

  • DISM.exe /Online /Cleanup-Image /ScanHealth
  • DISM.exe /Online /Cleanup-Image /CheckHealth
  • DISM.exe /Online /Cleanup-Image /RestoreHealth

Step 5. Once done, check if the error is fixed.

Fix 6. Check Disk

If running the SFC and DISM are also unable to fix the SYSTEM_EXIT_OWNED_MUTEX BOSD error, you can suspect the error is caused by disk errors and try running CHKDSK to fix the error. To perform that, you just need to run Command Prompt as administrator, type “chkdsk c: /f” and press Enter. Wait until the process is over and restart your computer.

Fix 7. Repair Corrupt Memory

Corrupt RAM may also cause the SYSTEM EXIT OWNED MUTEX error. In this situation, you can try running Windows Memory Diagnostic to repair the corrupt memory. Here’s how to do it:

  1. Open the Search window.
  2. Type “memory”, and then click Windows Memory Diagnostic under Best Match.
  3. Next, tap Restart now and check for the problems (recommended).
  4. Wait for the scanning process to complete.

Fix 8. Use Restore Point

If none of the above fixes can help you fix the SYSTEM EXIT OWNED MUTEX error, you can try using the restore point to an earlier point where the error hasn’t occurred.

If there aren’t any system restore point on your PC, you can try repairing Windows using an installation media.

Bottom Line

How to fix the SYSTEM_EXIT_OWNED_MUTEX BOSD error? This post provides 8 feasible solutions to the blue screen error. You can try them one by one until you fix it successfully.

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