How To Fix System Thread Exception Not Handled Error?

Windows 10 Troubleshooting Guide
TechLatest is supported by readers. We may earn a commission for purchases using our links. Learn more.

Blue screen of death or BSOD is the most horrifying thing a Windows user can experience. However, for Windows 10, the user is known as the system thread exception not handled.


This means that your computer created an exception of error that the handler failed to catch. As a result, a blue screen of death has appeared.

So the question is, how do you fix system thread exception not handled error? Well, there are a couple of ways to do so.

In this article, I will be looking at the best possible fixes to help you get rid of the error. So here we go:

Also, Read: How to Fix ERR_INTERNET_DISCONNECTED Error Easily

System Thread Exception Not Handled

How To Fix System Thread Exception Not Handled Error?

1. Check Error Log File

One of the first things that you can do is check the error log file. So you can know what is causing you the issue, and then you can take further steps to fix it.

For this method, we have to enter Safe mode. So follow the below steps:

  • Restart your PC and keep hitting the F8 key, and you should be in Safe mode.
  • Once you enter into the safe mode press, Windows Key + R to launch Run.
  • Type down eventvwr and press enter.
  • Go to Windows Logs -> System.
  • Over here, you should see the error.

Once you have figured out what caused the issue, you can perform a further Google search with the error.

2. Update, Reinstall or Roll Back Drivers

System thread exception not handled is one of the common issues that happen because of faulty or not compatible drivers. So if you have recently updated any of the drivers, then you can roll back them or try updating your existing drivers.


For this, we will again need to enter safe mode. So once you do that, go ahead and follow the below steps:

Update Drivers:

  • Press Windows + X key and go to Device Manager.
  • Now right-click on each and every driver and select Update Driver.
  • Next, Windows will automatically scan for updated drivers and install them for you.

Rollback Drivers:

In case if the error appeared right after updating a driver, then rolling back the driver might fix the issue. To roll back the driver, you have to go to the Device Manager.

Next, navigate to the driver you wish to roll back and, right-click on it, and select Properties.

Then go to the Driver tab and select Rollback driver.


Reinstall Driver:

You can also try reinstalling a driver. For this, you have to go to Device manager -> Select the driver and right-click on it -> Uninstall Driver.

3. Repair your system files

The system thread exception not handled error can also occur because of corrupted system files. So repairing them would be a good idea. So go ahead and follow the below steps:

  • Press Windows + X and select Windows terminal (Admin). In case if you are in Safe mode, then launch CMD from the advanced options list.
  • Type down, sfc /scannow and press enter. This will start replacing any damaged or lost system files.

After running the command, if you encounter any issues, you can try running DISM to restore the health of your PC.

So do run these below commands in Windows Terminal or CMD one by one:

Exe /Online /Cleanup-image /Scanhealth
Exe /Online /Cleanup-image /Restorehealth

4. Rename the faulty driver

If you find a file named as or associated with the system thread exception not handled error code, then you can rename the driver to something else. This way, Windows will fetch a new copy of the driver and install it.

To rename the driver, follow the below steps:

  • Go to Windows search and type down CMD.
  • Right-click on it and select Run as administrator -> Yes.
  • Type down C: and hit enter.
  • Next, paste this path and press enter cd windows\system32\drivers (hit enter) ren FILENAME.sys FILENAME.old. Over here, you have to replace the FILENAME with the faulty driver file name.
  • Finally, type down exit and press enter, and then restart your PC.

5. Restore your PC to an earlier version

In case you have ever created a backup of your system. Then you can restore it to an earlier period of time before you get the system thread exception not handled error.

For this, you will need a system repair disc for Windows or a recovery drive. If you do have it, follow the below steps:

  • First, insert the system repair disc into your computer and select your preferred language.
  • Next, click on the Repair option and select Troubleshoot -> Advanced options.
  • Next, choose a system restore point and follow all the onscreen instructions.

Final Words:

I hope the above steps did help you fix the system thread exception not handled error.

However, if you still get the error, I recommend you reinstall Windows by going to the System -> Recovery option and seeing if that helps you.

Also Read: How to Fix NET::ERR_CERT_AUTHORITY_INVALID Error in Windows 10

Leave a Comment
Notify of
Inline Feedbacks
View all comments