Fix: Windows 11 error System Thread Exception not Handled

by Loredana Harsana
Loredana Harsana
Loredana Harsana
Managing Editor
Loredana is a passionate writer with a keen interest in PC software and technology. She started off writing about mobile phones back when Samsung Galaxy S II was... read more
Affiliate Disclosure
  • The Windows 11 error System Thread Exception not Handled indicates an internal system crash.
  • A first solution to this BSoD error is to boot your computer into Safe Mode.
  • Alternatively, you can uninstall the faulty driver and reboot your PC to reinstall it.
system-thread-exception-not-handled windows 11 error system thread exception not handled

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You’ve probably started your computer and got the Windows 11 error System Thread Exception not Handled on your screen, along with the big sad face. Don’t worry as we’ve got your back!

Unfortunately, a simple restart of your PC won’t fix the error but the better solutions aren’t that complicated. Typically, a bad driver that has been installed on your machine is the source of the blue screen.

Follow along as we will show you what to do in order to fix the System Thread Exception not Handled error in Windows 11, right after we see in more detail what could have caused it. Keep up with us!

What caused the Windows 11 error System Thread Exception not Handled?

We think it is necessary to understand what is causing the System Thread Exception not Handled problem before we can attempt to resolve it, so let’s get started.

Upon startup, Windows 11 will automatically detect and load all of the essential drivers that have been installed on your machine. It is possible that a driver is incompatible with your Windows iteration, or that a bug has been introduced into it.

A blue screen of death (BSoD) will appear as a result of this, stating the error SYSTEM_THREAD_EXCEPTION_NOT_HANDLED on the screen.

windows update windows 11 error system thread exception not handled

Sometimes difficulties appear out of nowhere. One day your computer is operating normally, and the next day it refuses to start.

However, the majority of the time, these unexpected problems are caused by faulty Windows updates, outdated drivers, or even a driver update that tweaks something else in your system.

This being said, now we shall proceed with the troubleshooting process of the Windows 11 error System Thread Exception not Handled. Follow along!

How can I fix the System Thread Exception not Handled error in Windows 11?

1. Boot into Safe Mode

  1. Click on the Start menu, then tap on the Power icon.start-power bcdedit windows 11
  2. Hold the Shift key on your keyboard, then choose the Restart option.
  3. Once you’re redirected to the screen below, you will need to click on Troubleshoot and choose Advanced options.advanced-options-option bcdedit windows 11
  4. Next, click on Startup Repair and tap on the Restart button.startup-repair bcdedit windows 11
  5. After your computer has rebooted, press the number 4 key on your keyboard to select the proper option from the displayed menu on your screen. Following that, the machine will enter the Safe Mode environment.

2. Use a third party tool

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PC problems will inevitably arise, and resolving them isn’t always simple. However, specialized tools such as Restoro can assist you in resolving these issues.

It can solve any problem caused by corrupted system files, malware infections, or issues that arise after a Windows upgrade.

This is accomplished by first determining the source of the fault, then locating the exact elements that caused the difficulties, and then automatically replacing or correcting the files using its database of 25.000.000 files.

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3. Reinstall the graphics card drivers

  1. Head to Device Manager by right-clicking on the Start icon and choosing the option with its name.device-man windows 11 error system thread exception not handled
  2. Now expand the Display adapters section and right-click on each option in there to choose Uninstall device as we have shown below. display-adapters windows 11 error system thread exception not handled
  3. Lastly, you will need to restart your computer in order to reinstall the graphics drivers automatically. That’s it!

We can’t stress enough how important updating your drivers are. Thus we recommend you DriverFix, a specialized tool that updates and fixes them automatically for you.

4. Repair your system files

  1. Start off by opening the search box by clicking on the magnifying glass icon on your Taskbar and type in cmd. Right-click on the top result and choose Run as administrator.cmd-search windows 11 error system thread exception not handled
  2. Now, type or paste the following command inside the CMD window and press Enter: sfc /scannowsfc-scannow windows 11 error system thread exception not handled

5. Use a Windows Restore Point

  1. Open the search box by pressing on the magnifying glass icon from your Taskbar and look up Create a restore point. Click on the top result to open it.create-a-restore-point windows 11 error system thread exception not handled
  2. Click on the System Restore button.system-restore-button windows 11 error system thread exception not handled
  3. Click on Next and then select the restore point in order to undo the latest changes to your computer. That’s it!restore-point windows 11 error system thread exception not handled

For more information on Windows system restore points, check out our article on how to create a Windows 11 restore point.

Alternatively, if you’ve made a mistake that you want to delete from your past, we’ve got you covered with a guide on how to undo a system restore in Windows 11.

And lastly, since we are on the same subject, we suggest that you read our post on how to fix System Thread Exception not Handled ntfs.sys in Windows 10, since it includes solutions applicable to Windows 11 as well.

Was this guide helpful for you and your friends? Do tell us in the comments section below as well as whether you have more solutions in mind.

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