FIX: System Thread Exception not Handled in Windows 10

by Ivan Jenic

Troubleshooting Expert

March 24, 2020

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Have you upgraded to or Windows 10? If you have, you might encounter the System thread exception not handled error message appearing on your display alongside with the classic Blue Screen of Death.

Read this guide to learn more about this issue and how to fix the System thread exception not handled error in Windows 10.

If the system thread exception not handled error message appeared on your screen, you will also notice that after approximately five or ten seconds your Windows 10 device will reboot.

This error message is caused by an outdated graphic driver. Don’t worry because you will get rid of this issue in just ten minutes of your time.

How do I fix the System thread exception error?

• Launch Startup Repair
• Update your graphics drivers
• Run the BSOD troubleshooter
• Use a Restore Point

1. Launch Startup Repair

1. First, you will need to place a Windows 10 boot disk into your CD/DVD drive.
2. Reboot your Windows 10 device.
3. Now after the restart of the operating system, your computer will go directly to the bootable disk.
   • Note: It might ask you to choose if you want to boot from the specific Windows 10 media and you will need to do so.
4. You now have in front of you the Windows Setup screen.
5. Left click or tap on the Next button situated in the lower side of the screen.
6. Now you will need to left click or tap on the Repair your computer feature situated in the lower side of the screen.
7. In the Choose an option window you will need to left click or tap on the Troubleshoot feature.
8. In the next window you will need to left click or tap on the Advanced options feature.
9. Now left click or tap on the Command Prompt feature.
10. When the Command prompt window (black box) is in front of you write in there the following:
    • C:
11. Press the Enter button on the keyboard.
12. Write in the command prompt window the following command:
    • BCDEDIT /SET {DEFAULT} BOOTMENUPOLICY LEGACY
13. Press the Enter button on the keyboard.
14. Now if you have written correctly the command above you will need to write:
    • Exit
15. Press the Enter button on the keyboard in order to exit the command prompt window.
16. Now in the Choose an option window you will need to Left click or tap on the Continue.
17. Reboot your Windows 10 device.

2. Reinstall your graphics drivers

1. Now when the system restarts you will need to press on the F8 button on the keyboard continuously until you get to the Advanced boot options menu.
2. In the Advanced boot options window, you will need to move with the arrows on the keyboard and select the Safe Mode feature.
3. Press the Enter button on the keyboard.
4. Now that your Windows 10 starts you will need to log on with the administrator account.
5. Left click or tap on the Desktop icon in the start screen.
6. Move the mouse cursor over to the lower right side of the screen.
7. From the menu that appears you need to left click on the Settings feature.
8. In the Settings menu, you will need to left click or tap on the Control Panel icon.
9. Now in the Control Panel window, you need to left click or tap on Device Manager.
10. In the Device Manager menu on the left side double click (left click) on the Display adapters category in order to expand it.
11. Now you will have there the graphics driver that you currently use in Windows 8.1 or Windows 10 and you need to right click on it.
12. Left click on the Uninstall option.
13. Left click or tap on the OK button on the next window that appears in order to confirm the uninstall process.
14. Now after the driver is uninstalled you need to take out the Windows 10 boot media and also restart your operating system.
15. After the operating system powers up again, follow the steps above to check if it installed the graphics driver automatically.
    • Note: if it wasn’t installed automatically you will need to go on the manufacturer’s website and download the latest driver for your graphics card from there.
    • We also recommend this third-party tool (100% safe and tested by us) to automatically download all the outdated drivers on your PC.
16. Install the latest driver available and reboot the system again.
17. Now all you have to do is wait and see if you still get the system thread exception not handled error message during your operating time in Windows 10.

3. Run the BSOD troubleshooter

BSOD errors are pretty common on Windows computers. For this reason, Microsoft added a very useful Blue Screen troubleshooter on the Settings page.

As its name suggests, you can quickly fix Blue Screen of Death errors with the help of this tool. All you need to do is go to Start > Settings > Update & Security > Troubleshoot > select and run the Blue Screen troubleshooter.

4. Use a Restore Point

If the problem persists, try restoring your computer to a previous working state by using System Restore. This involves you installing an image of your OS from a time before you had any issues with it.

FAQ: Learn more about Blue Screen of Death errors

• Can a BSoD cause permanent damage to my PC or my data?

Despite popular belief, BSoD error messages are actually a Windows failsafe method that actually prevents your data from getting damaged or corrupted.

• Is getting a BSoD error normal?

Under normal conditions, Blue Screen of Death errors should not appear if your PC is working perfectly both from a software and hardware point of view.

• Is a Windows 10 reset 100% efficient in fixing BSoDs?

Normally, a total WIndows 10 reset should fix any BSoD error messages. However, if you’re errors are caused by hardware issues, then your only choice is to replace the faulty components.

By following the steps written above, you should be able to prevent any BSoD errors from triggering on your PC.

Fell free to leave us a message in the comments section below if you know of any other method that we may have missed out on, and we will update this article as soon as possible.

Editor’s Note: This post was originally published in July 2018 and has been since revamped and updated in March 2020 for freshness, accuracy, and comprehensiveness.