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How to fix ‘System Thread Exception Not Handled’ error in Windows 10?

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Windows 10 is a rather well-made OS but isn’t immune to bugs and glitches from time to time. For example, you could face BSODs, corrupt files or drivers that can hamper your PC’s functionality. 

In this article, we’re going over six fixes for the ‘System Thread Exception Not Handled’ error in Windows 10. 

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Boot into safe mode

The first thing you should try is to boot your PC into safe mode to check if it works there and single out any driver based issues. 

Booting into Safe Mode using Windows Settings

Step 1: Press the Windows key and search for Safe Mode. Click the corresponding search result.

How to fix 'System Thread Exception Not Handled' error in Windows 10?

Step 2: Under Advanced startup, click on Restart now. 

How to fix 'System Thread Exception Not Handled' error in Windows 10?

Step 3: When your PC reboots, click on Troubleshoot.

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Step 4: Head over to Advanced Options.

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Step 5: Select Startup Settings.

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Step 6: Click the Restart button.

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Wait for your PC to reboot into safe mode and check if you can access it without any issues.


From the Start Menu

Open the Start menu, click on the power icon and click on Restart while holding down the Shift key. Then, follow Step 3 to Step 6 from the section above and wait for your PC to restart. 

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From a blank screen

If you’re unable to reach the login screen, try these steps.

Step 1: Hold down the power button for about ten seconds to power off your PC.

Step 2: Press the power button again to boot your PC.

Step 3: As soon as you see the PC manufacturer’s logo, press and hold the power button for ten seconds. 

This should boot your PC into the Windows Recovery Environment. Follow steps 3 to 6 from the section above and wait for your PC to restart. 


Finding corrupt drivers

A corrupt driver most likely causes this error. To find out which driver (usually display or network drivers) is causing the issue, follow these steps. 

Step 1: Press Windows key + R to open the Run prompt. Type eventvwr and press enter. 

How to fix 'System Thread Exception Not Handled' error in Windows 10?

Step 2: Click on Windows Logs followed by System.

How to fix 'System Thread Exception Not Handled' error in Windows 10?

Step 3; Look for the system_thread_exception_not_handled log and click it to find the responsible driver. 

How to fix 'System Thread Exception Not Handled' error in Windows 10?

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Updating/Rolling back drivers

Once you’ve found the responsible drivers, here’s how you can update or roll them back to resolve your issue. 

Updating drivers

Step 1: Press Windows key + R, type in devmgmt.msc and hit enter.

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Step 2: Find the corrupt driver’s category and expand it to find the driver. For example, if your WiFi driver is acting up, double click Network adaptors to expand it and right click your Wi-Fi card. Click on Update driver.

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Step 3: Select Search automatically for drivers and Windows will find and install any available updates. 

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Rolling back drivers

Step 1: Follow steps one and two from the section above to locate your driver. 

Step 2: Right-click your driver and click Properties. 

How to fix 'System Thread Exception Not Handled' error in Windows 10?

Step 3: Head over to the Driver tab and click on Roll Back Driver. If the option is greyed out, it means that you’re already on the first version available. 

How to fix 'System Thread Exception Not Handled' error in Windows 10?

Now restart your PC and the error should’ve been resolved.


Rename faulty files

If a driver doesn’t cause the error, you’ll be able to find a file name from the logs. Once you’ve got the file name, follow these steps to rename it and possibly fix your issue. 

Step 1: Head over to File Explorer and head over to the following directory. 

C:\Windows\System32\drivers
How to fix 'System Thread Exception Not Handled' error in Windows 10?

Step 2: Find the affected driver’s file, right-click it and select Rename.

How to fix 'System Thread Exception Not Handled' error in Windows 10?

Step 3: Add .old to the driver’s extension.

How to fix 'System Thread Exception Not Handled' error in Windows 10?

Now restart your PC and the driver will be reinstalled resolving your issue in the process. 

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Use DISM and SFC

DISM and SFC are two of the most popular Windows 10 to fix system related errors, especially when dealing with corrupt files. 

You can check out our detailed guide on using the DISM tool here. 


Using SFC

Running the System File Checker can get rid of any corrupt files in your Windows System Installation and get rid of them. 

Step 1: Press Windows Key + X and click on Command Prompt (Admin) to run the Command Prompt with admin privileges. 

How to fix 'System Thread Exception Not Handled' error in Windows 10?

Step 2: Type sfc /scannow to run a system scan.

How to fix 'System Thread Exception Not Handled' error in Windows 10?

Restore your system

If nothing else works, you’re going to have to restore your system to a point in time where everything was fine. It’s a bit of an inconvenience, but it’ll fix most if not all issues you’re facing with your PC.

Step 1: Press the Windows key and search for Reset this PC. Launch the Recovery setting from the search results. 

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Step 2: Click on Open System Restore. 

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Step 3: Select the recommended restore point and click the Next button to proceed. 

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Yadullah Abidi

Yadullah is a Computer Science graduate who writes/edits/shoots/codes all things cybersecurity, gaming, and tech hardware. When he's not, he streams himself racing virtual cars. He's been writing and reporting on tech and cybersecurity with websites like Candid.Technology and MakeUseOf since 2018. You can contact him here: [email protected]

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