FIX: System Thread Exception not Handled in Windows 10

Ivan Jenic
by Ivan Jenic
Troubleshooting Expert
63 Comments
Download PDF
Affiliate Disclosure

  • A Blue Screen of Death error indicates a system crash, meaning that your operating system has reached a point where it can no longer operate safely
  • Well will be covering a few ways you can fix some of the most common BSoD causes, and make you better understand what this type of error actually is
  • Since you're using Windows 10 daily, don't forget to check out our in-depth Windows 10 Errors hub
  • Come and take a look at our dedicated BSoD Section for more useful articles
System Thread Exception not Handled BSOD windows 10

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.

”system thread exception not handled” Windows 8.1 or Windows 10 fix

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This error message is caused by an outdated graphic driver.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?

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.

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.

Was this page helpful?
Thanks for letting us know! You can also help us by leaving a review on MyWOT or Trustpillot.
Get the most from your tech with our daily tips
Tell us why!
  • My laptop is dell inspiration 14 and I had upgraded my laptop from Windows 8.1 to Windows 10. But from that time my some apps doesn’t open like store, Xbox, 3d builder, get office,camera and many more apps. After a few days, when I was making a new software, while adding some c++ codes and working on it, my computer screen appears black and after some time a blue screen appears and says my pc ran into a problem which name system thread expectation not handled and restarts. Then I lost my all work which I was working. I had tried the above steps but it did not work. Please give some another way.

  • I bought your program and my system has had the BSOD three times since then – can’t say I’m thrilled with the results.

  • All i did was to power off the system, Remove the RAM, Replace it and restart the System and Voila!!!!
    Everything was ok

  • Thank you so much. I searched for and tried so many other solutions and nothing worked. Yours worked great. I was just about to pitch my laptop and get a new one so thank you for saving it! 🙂

  • On a PC. When I type the command prompt in I get “the boot configuration data store could not be opened.” Tried F8 anyways, SafeMode options shows, I click on it, crashes with same error code anyways. Windows 8.1 on anow external USB drive.

  • I have Windows 10 Home. I Had The Same Problem. DO NOT TRY TO REINSTALL WINDOWS! DID NOT HAVE TO AND STILL FIXED!
    Shut Your PC Down And Wait For 15-30 Minutes and Turn Back On.
    Your PC May Show It Is Connected But When You Open Your Web Browser It Says It Is Not Connected. DO NOT WORRY. Just Tell Your Pc To Restart. You do not Have To Wait On The Restart.

  • ummmm, the report keeps showing even after I insert my bootable disc, I already changed my boot order in BIOS and boot from usb but the error keep showing up and can’t get into the installation page,, what should I do ? 🙁

  • When I BOUGHT THIS LAPTOP IT CAME WITH WINDOWS 8 I UPGRADED TO8.1. I DONT HAVE THE BOOT DISC YOUR ASKINGME TO USE TO FIX ISSUE ABOVE. SO NOW WHAT?

  • Did not help. I tried to boot my laptop using a windows bootable dvdrom. It begins to boot but then gives the same error after 10secs.

  • So you have access to one laptop only, and somehow it got broken, get system_thread_exception_not_handled error and looped all the time.
    What can you do?

  • Thanks to one over at microsoft forum I could get my laptop to work again even while it was showing the blue screen after I booted from an usb or dvd. THIS finally solved my problem.

    Hi all, here’s a quick fix if you’re having this problem on a laptop:

    Turn it off, remove the battery, unplug it from its power source, leave it off a few minutes, hold down the power button for 5-10 seconds, plug power back in BUT NOT THE BATTERY, turn on laptop. It should start normally. Then put battery back in at your earliest convenience.

    Hope it works for you, it’s worked for me every time I have it on my Acer Aspire.

  • Whew, I got my machine working and I promptly made a recovery drive with a USB. Just type “recovery drive” into Cortana’s search window and then look around your house for a USB that has 4GB or more, and you’ll have something to pop in if you run into trouble.

  • Hi, i just recently updated to windows 10 online. Since then i’ve being having this BSOD and error message “system thread exception not handled”. I have since then completely di-installed my Graphics driver, but haven’t solved this problem at all i.e. i still recieve the error message with the BSOD.
    What can i do to resolve this problem since its obvious that my graphics driver is not the cause?
    Thanks

  • Well I am absolutely livid this is happening to me too. It has made my PC useless. I don’t have a boot disc either. You would think that in determining if a computer was compatible or not that this sort of aspect would be considered i.e outmoded graphics card or whatever! I mean what THE HELL??? My computer doesn’t even stay on long enough for me to enter safe mode or ANYTHING!!!!!

  • What if you do not have the Windows 8.1 bootable media? How then do you go about repairing your PC? Is that the only way to make the repairs?

  • I need help. I upgraded from windows 7 home to windows 10. Ugrade failed in second phase(installing drivers) and my laptop turned off. Now if I try to turn it on I get the blue screen with errer message: system thread exception not handled.
    I don’t have a boot disk.
    what can I do

  • Ran those commands in cmd, went to continue, attempted to start in safe mode, gave same error, and restarts…. Upgraded from Win 7 Home Premium to Win 10…..

  • Having received the windows 10 download for free, where/how do I get/find the Windows10 boot disk? They do not tell in their explanation on how to solve the “system thread exception not handled” problem.

  • i already did every steps so why does the system_thread_exception_not_handled still appear so confused dont know what to do

  • esta laptop toshiba fue un obsequio desde el extranjero. Vino con el Windows 8 original ya instalado… Por lo tanto no tengo el Disco de Inicio de Windos 8.1 por favor si alguien pudiera indicarme qué es lo que puedo hacer… gracias de antemano.

  • These steps did not help me, but I was able to finally get it to boot into Windows. What I did:

    1. Booted to Windows 8 CD (or wait for Windows 8 to show the repair window and click on Advanced Options).

    2. Go into Troubleshoot > Advanced Options > Command Prompt

    3. Run sfc /scannow /offbootdir=c: /offwindir=c:windows

    This found some errors, but said it could not fix all of them. Close the Command Prompt.

    4. Remove the Windows boot disk if that was used. Then shut down the computer.

    5. Restart the computer and keep pressing F8. It should display the list of boot options. (if not, follow the steps in this article)

    6. Select Safe Mode.

    This time, I got “System Thread Exception Not Handled (SynTP.sys)”. The file in parentheses is the driver causing the error. Write that filename down.

    7. Put the Windows boot CD back in and boot into it, or restart and get it back to the point where it fails to do Automatic Repair, then go into Advanced options.

    8. Go back to Troubleshoot > Advanced Options > Command Prompt.

    9. Run these commands in order:

    c:
    cd windowssystem32drivers
    ren SynTP.sys SynTP.old

    (Replace “SynTP.sys” with the name of the driver file that was in the blue screen error message.)

    10. Remove the CD, close out of command prompt, then restart Windows.

    11. In my case, this booted into Windows successfully.

  • Didn’t work. Failed after step 20. It just returns to the same error as before. It does not boot into Windows using Safe Mode either.

  • I don’t have a boot disk. Bought my laptop from Best Buy 4 months ago and it didn’t come with any disks. Model HP 15-g014dx, touch screen…. I get this error message several times a day also get where it looks like a tv channel with a bad connection/staticky… 🙁 about to just take it to them and let their Geek Squad deal with it.

  • […] habe diese Antwort im Netz gefunden. Ich selber kenne es nicht. Falls du englisch verstehst,hier: Fix: 'System Thread Exception not Handled? in Windows Vielleicht hilft das […]

  • need a help, i’m using acer aspire v5 with windows 8.1 but i have some problem with its start menu, like my start menu just open but the applications are not working, for e.g when i try to open my store the store is not opened its just bling and then appear on taskbar but not work, so please help me.

  • This seems like a pretty involved way to replace the display driver. I have aToshiba C55t-A running Windows 8.1 on an AMD A6. My problem is that I’m using the older (2013) video driver intentionally because the newer driver for my graphics card is a complete failure — most videos (YouTube, etc) turn blank green or gray screen. Audio works but no video. Tried every remedy. After removing and reinstalling the driver several times, I gave up on the current driver and rolled back to the prior driver. With the prior driver, the video works fine, but periodically I get the “System Thread Exception Not Handled” and it reboots. Big pain in the neck. So no, I don’t want the latest driver. Any other solution?

  • Thanks this helped fixed an issue I was having with a Toshiba Portege laptop. I would like to return the favor of your effort.

    You can access the Device Manager window much more quickly in any version of Windows by using the “Run…” command (Windows Key+R) and typing “devmgmt.msc” and clicking the OK key or hitting Enter/Return on the keyboard . This will save a lot of steps in your procedure.

    Thanks again. This fixed a recent issue that was causing me to consider replacing the computer.

      • Problem with your method is – is it “My Computer” or “Computer” or “This PC” or none-existent in the Start menu (assuming there even is Start Menu)? My way works regardless of OS version or Start Menu configuration.

        • Any of those, they’re all the same. On Win8 which doesn’t technically have a start menu you can still right click on the Windows icon and choose Computer Management.