Windows

Fix System Thread Exception Not Handled

System Thread Exception Not Handled is a BSOD (Blue Screen of Death) error that appears when the system starts. It can create an endless loop where the Windows start and reboot continually. For obvious reasons, the situation is absolutely bothersome. 

Although the reason behind this error message can be several, users claim that an outdated and corrupted driver creates such a situation. To get a clear insight regarding the causes and solutions for this error, follow the guidelines provided below.

Why Does “System Thread Exception Not Handled” Error Message Appears on Windows 10?

Besides an outdated and incompatible driver, the causes behind this error message can be several including:

  • Minidump files
  • Display drivers
  • BIOS incompatibility
  • Memory conflict
  • IRQ (Interrupt Request) conflict
  • Corrupted files

What to Do If Windows 10 Displays “System Thread Exception Not Handled” Error Message?

There are various ways to solve this problem, thus it is recommended to follow the solutions given below. Implement the suitable one and check if the issue resolves or not. 

Solution 1: Update the Faulty Graphics Card Driver

Any corrupted or faulty graphics card driver can result in this error message. Hence, to get rid of this problem it is extremely important to update the Faulty graphics card driver following the steps mentioned below.

  • Press both Windows and R keys together to start the Run box and then type “cmd” in it. Hit the Enter button.
  • Again, within the command prompt, type “eventvwr” and press the Enter button. 
  • Go to the Windows logo and expand it. Click on System>Source to know about the driver that is responsible for this error. 
  • Once you get to locate the driver causing the problem, make sure to update it.
Graphics Card Driver Update Process

To update the Graphic card driver, you need to follow the steps given below.

  • Go to Start and type ‘device manager’ within the search bar. 
  • Choose the category of Graphics card and then right-click on it. 
  • Click on “Update Driver” and then on  “Search Automatically for Updated Driver Software”
  • Other than that, you can also try reaching the manufacturer’s website to download the graphics card driver. 

Solution 2:  Check the BIOS Update

You can also try checking the BIOS update by reaching the website of the manufacturer. However, before doing so, you need to know the motherboard manufacturer’s name and the model number. To know the model number of your motherboard, follow the steps cited below.

  • Press both Windows and R keys together to bring up the Run box.
  • Within that, type cmd and then hit the Enter button. 
  • Type the command below to know about the motherboard manufacturer and product number.

wmic baseboard get manufacturer, product

  • Once you get the details, reach the manufacturer website and download the BIOS update for it. 

Solution 3: Repair Corrupted System Files using the CHKDSK Command

You can also try resolving this issue by running the chkdsk command. To execute this solution, follow the steps mentioned below.

  • Press the Windows key and type cmd within the search bar.
  • Look for Command Prompt and right-click on it. Choose “Run as Administrator” from the dropdown.
  • After that, type the command given below and press the Enter button

chkdsk e: /f /r

  • Again, type Y and hit the Enter button. Restart your system to find any corrupted files within it. 

Solution 4: Perform an SFC Scan

As mentioned earlier, any corrupted file within the system can cause this problem as well. Hence, perform an SFC scan in order to get rid of it. You can do so by following the steps given below.

  • First, go to Start and type cmd within the search box.
  • Once Command Prompt appears on your search list, right-click on it. Click on Run as an Administrator. 
  • Within the Command Prompt, type the command mentioned below and press the Enter button. 

SFC /scannow

  • Wait for some time so that the sfc scan can be completed and then restart your system to check if the issue resolved or not. 

Solution 5: Rename the Corrupted Driver

At times, users claim to see the driver’s name with the error message. Hence, this information can be used to locate the culprit driver and then rename it to fix the issue. To do so, follow the steps given below one by one.

  • Go to Start and type cmd within the search bar.
  • From the search list, select Command Prompt and run it as an administrator.
  • Type the commands mentioned below and press the Enter button after each.

c:

dir

  • If you see a folder named Windows, then it is the faulty driver. If you do not, type d: and hit the Enter button.
  • Enter the commands given below in sequence and press Enter after each step

cd windows\system32\drivers

ren drivername.sys drivername.old where driver name stands for the corrupted target driver. Reboot your system to reinstall the driver.

  • If it does not, invoke the Run window, type “devmgmt.msc” and press Enter.
  • Look for the uninstalled driver and right-click on it. Click on “Update Driver Software”.
  • Again click on “Search automatically for Updated Driver Software”. 

Solution 6: Reset Your System

If none of the solutions mentioned above works for you, try resetting your system and check if the problem resolves. Here are the steps you need to follow.

  • Go to Start and then Settings. Click on “Update and Security” and then “Recovery”. 
  • Select “Reset this PC” from the list and then click on Get started.
  • Choose from either “Keep my files” or “Remove Everything” and follow the on-screen instructions. 
  • Once prompted with Reset, make sure to click on it. Your system will be restarted and reset as well. Click on Continue. 

So, these were some of the solutions following which you should be able to resolve the “system thread exception not handled” error message on your system successfully.