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How to Fix System Thread Exception Not Handled Error on Windows 10

BSODs are the worst part of Windows systems. Sometimes, users will not be able to use their PCs after their Windows system starts and they are stuck in a never-ending restart of system thread exception not handled Blue Screen of Death error. 

This stop code in Windows often appears when something goes wrong with the drivers. For example, it can be caused by incompatible, outdated graphics card drivers. Besides, some security software or program can also lead to this error. 

If you are also encountering the same error on the screen, then do not worry about it. Here, you will get to know nine workarounds to eliminate this error from your device. You can follow the methods listed in this article for an easy and quick fix. 

9 Fixes to Solve BSOD Error System Thread Exception Not Handled in Windows 10 System 

The stop code system thread exception not handled is an annoying error, but you can fix it instantly. Here, we are going to discuss all the effective fixes that can help you get rid of this error from the device. So, let’s take a look at them.

Boot into Safe Mode

To fix this issue, first, you need to boot the device into the Safe mode. To do that, follow these directions:

  1. Restart the device while holding the Shift button.
  2. Once the system restarts, the Choose an option menu list will appear. Select the Troubleshoot button.
  3. After that, click on Advanced options and then choose Command Prompt.
  4. On the Command Prompt window, type BCDEDIT /SET {DEFAULT} BOOTMENUPOLICY LEGACY and then hit the Enter button.
  5. After executing this command, type Exit and then press the Enter key. Then click on the Continue button.
  6. Restart the device and keep pressing the F8 key before the Windows logo appears. Now the Advanced Boot Options menu will display on the screen. 
  7. Choose Safe Mode with Networking and hit the Enter key. Now the Windows 10 system will be running into Safe mode.

Now, you can follow the fixes mentioned below for a quick and complete fix of this System thread exception not handled error on your Windows 10 system.

Fix 1 – Update the Graphics Card Driver

An outdated Graphics card driver can cause the ‘System thread exception not handled’ error on a Windows 10 system. So, you need to update the driver properly. Take a look at the steps given below.

  1. Click on the Windows Home button and select Device Manager.
  2. From the Device Manager window, select Display Adapters to expand the section. After that, right-click on the Graphics Card driver and choose the Update Software Driver button. Now the update process will begin. 
  3. After completing the update process, reboot the system and check if the problem still persists or not.

Fix 2 – Reinstall the Graphics Card Driver

If the Graphics card driver is missing or corrupted then you might see this error on your device. So, you can remove the graphics card driver and install it correctly. To reinstall it, follow the directions cited below:

  1. Go to the Device Manager window.
  2. On the Device Manager window, locate Display Adapters and select it. Then, right-click on the Graphics card driver to open the list. 
  3. Select the Uninstall device button to remove it.  After finishing the removal process, install it properly. 

To install it, you need to open the Device Manager window again and click on the ‘Scan for hardware changes’ icon. Now the system will find the driver and install it automatically. 

Once the installation process is complete, reboot the device and then check if the error has been fixed or not. If you find this error again then you can follow the other fixes mentioned below.

Fix 3 – Update the BIOS

If the BIOS has not been updated properly, then you may face this error on the system. So, you need to update the BIOS. Follow these steps hereunder.

  1. Open the Run box, type System Information and then hit the Enter button or click on the OK button.
  2. On the System Information window, locate BIOS and select it. Now you can check if the BIOS version is updated or not. 
  3. If not, then go to the Manufacturer website of the BIOS and look for the latest version of the BIOS.
  4. Once you find it, download it and then install it correctly. When you install it you need to follow the instructions which pop-ups on the screen. 
  5. After installing it, restart your computer and then check if the error is fixed or not.

Fix 4 – Run the BSOD Troubleshooter

Running the Windows troubleshooter tool can solve the system thread exception not handled error on your device. If you do not know how to run the troubleshooter tool, follow these steps:

  1. Launch the Settings window.
  2. Navigate to the Update & Security section and select the Troubleshoot tab from the left panel.
  3. Scroll down the page until you find the BSOD, select it. After that, click on the Run the troubleshooter button to start the troubleshooting process. 
  4. You need to follow the on-screen directions carefully to finish the troubleshooting process.
  5. Once the process is complete, restart the device.

Fix 5 – Run SFC (System File Checker) Scan and DISM Tool

SFC is an inbuilt tool for Windows. Running this tool can also solve this issue. Here’s how to run this tool on a Windows 10 system.

  1. Click on the Start button and select Command Prompt(Admin).
  2. Type sfc/scannow in the Command Prompt window and then hit the Enter button.
  3. Once the scanning process is done, reboot your PC. 

After rebooting the device, if the error still appears then you can run the DISM tool. Let’s take a look at certain steps you can follow:

  1. Open a Command Prompt window.
  2. Type DISM /Online /Cleanup-Image /RestoreHealth and then hit the Enter button to run this command.
  3. Wait until the process is complete, reboot the Windows 10 system and then check if the error is resolved or not. 

Fix 6 – Check the Hard Drive

It is possible that the hard drive is damaged and because of that, you are facing the system thread exception not handled BSOD error. So, you need to check if the hard drive is damaged or not. The following steps will help you.

  1. Restart the system while pressing and holding the Shift key.
  2. After restarting the system, you will enter the Advanced Startup section.
  3. On the Advanced Startup section, select Troubleshoot and then click on Advanced Options.
  4. Choose the Command Prompt option.
  5. In the Command Prompt window, type the following commands bootrec.exe /rebuildbcd, bootrec.exe /fixmbr, and bootrec.exe /fixboot
    and then hit the Enter button after typing each command.
  6. Once these commands are executed, reboot your Windows 10 system and check if the error still shows up or not. 

Fix 7 – Uninstall the Security Software

Sometimes, the security software installed on your system can cause the system thread exception not handled BSOD error. So, you can simply remove it. For that, follow these steps:

  1. Open the Control Panel window.
  2. Go to the Programs and Features section and locate the security software, click on it.
  3. Now, you will see the Uninstall button, click on it to remove the software.

Fix 8 – Update the System

Windows system has few problems with software and hardware, but you can easily fix these problems by updating the system. Follow these steps:

  1. Press the Win + I keys to open the Settings window.
  2. Double-click on the Update & Security section.
  3. Select the Update tab and click on the Check for updates button to check if an update is available or not.
  4. If yes, then click on the Update button.
  5. Once the update process is complete, restart the system. 

Hopefully, following the above fixes, you will be able to fix the BSOD error system thread exception not handled on the device. You can mention in the comments as to which of the fixes worked for you.