5 Fixes for System Thread Exception Not Handled BSOD in Windows 10/11

David Darlington

Sep 11, 2023 • Filed to: Windows Computer Solutions • Proven solutions

Ever Windows 8 or Windows 10/11 user is familiar with the Blue Screen Of Death (BSOD).

Out of 4-5 different types of BSOD errors in Windows 10/11, stop code - System Thread Exception Not Handled is the most common one. It is Windows' way of telling you that a driver or program in your PC is misbehaving.

So, how do you fix it?

There are multiple reasons behind the stop code - System Thread Exception Not Handled and there are specific solutions for each of them. We have divided this article into two separate parts where we will help you know different solutions and a comprehensive step-by-step guide to fix the issue and to recover your lost data caused due to this error. Let us begin.

Part 1: How to Fix System Thread Exception Error

Solution 1: Uninstall the Recently Installed Program

A new program is one of the most common causes of the stop code - System Thread Exception Not Handled error. Were you trying to install a program when you got this error?

If you were, follow these simple steps in Windows 10/11 to uninstall it.

Step 1: Click on "Settings".

Step 2: Go to "System".

Step 3: Click on "Apps & Features".

Step 4: Select the app that you recently installed and click "Uninstall".

Step 5: Follow the instructions that appear on your screen to uninstall the program.

Step 6: Repeat steps 1-5 to uninstall any other program you installed recently.

Step 7: Restart your system.

Once you restart your system after uninstalling recently installed programs, your PC should continue functioning normally.

If yes, congratulations! You've successfully fixed stop code - System Thread Exception Not Handled of BSOD. If not, continue to Solution 2.

Solution 2: Update Outdated Device Drivers

Another common cause for stop code - System Thread Exception Not Handled is an outdated or incompatible driver.

Follow the following simple steps to update your device drivers.

Step 1: Click "Windows" + "X" to open the Power User Menu.

Step 2: Click on "Device Manager".

Step 3: Click to expand on the device that is causing the problem.

Step 4: Click on "Update Driver Software".

Step 5: Choose "Search automatically for updated driver software".

Step 6: Follow the on-screen instructions to update the device driver.

Step 7: Restart your system.

Solution 3: Check and Repair Faulty System Files

Faulty system files are another reason for stop code - System Thread Exception Not Handled of BSOD.

Follow these simple steps to check and repair faulty system files on your PC.

Step 1: Click "Windows" + "X" to open the Power User Menu.

Step 2: Navigate to "Command Prompt (Admin)" and click to open it.

Step 3: Write "SFC /scannow" command and hit enter.

Step 4: Once the process is completed, restart your PC!

Solution 4: Run A Hardware Diagnostic Check For Memory

The stop code - System Thread Exception Not Handled can also signify that your PC has a memory problem.

The good news is Windows provides Hardware Diagnostic Tool to perform memory check. Follow this simple instruction to perform a memory check.

Step 1: Click on your "Start" menu search bar and type "Windows Memory Diagnostic" and select the first best match.

Step 2: Follow on-screen options and select "Restart now and check for problems". Your system will reboot once the process is completed.

Step 3: Once your system is back on, click on "Windows" + "X" to open the Power User Menu. Select "Event Viewer" from the list of options.

Step 4: Once Event Viewer opens, navigate through this path - "Windows Log" > "System". Use the memory diagnostic results at the bottom of the window to find any memory problems behind stop code - System Thread Exception Not Handled.

The steps for the above 4 solutions for fixing stop code - System Thread Exception Not Handled can only be used if your PC still starts normally.

If you are stuck at the BSOD, what do you do? Enter Safe Mode in Windows 10/11!

Solution 5: Enter Safe Mode and Fix System Thread Exception Not Handled Error

If your system is stuck in the loop of rebooting, you can enter Safe Mode and fix the stop code - System Thread Exception Not Handled.

Step 1: Hold on the "Power" button to turn your PC on and click it again to turn it off. Repeat this process 2-3 times. Your PC will begin the automatic repair.

Step 2: Click on "Advanced Options" which appears once the automatic repair is completed.

Step 3: Follow this navigation path "Troubleshoot" > "Advanced Options" > "Startup Settings" to reach a screen full of options as shown in the screenshot below. Hit "Restart".

Step 4: Click the number "4" key to enter Safe Mode

Step 5: Perform the 4 solutions mentioned above in the Safe Mode to fix stop code - System Thread Exception Not Handled.

Part 2: How to rescue unsaved or lost data due to System Thread Exception Not Handled Error

If you have lost important files in the process of fixing stop code - System Code Exception Not Handled, you can easily rescue or recover the lost data using a very useful tool - Recoverit Data Recovery.

Recoverit allows you to recover all sorts of files - images, videos, audios, Outlook emails, documents, and more. Follow these simple steps to recover a lost or deleted file using Recoverit.

Step 1: Select a Location

Once you launch the Recoverit tool, select the location where you lost your data.

Step 2: Scan the Location

Click on "Start" once you have selected the location to begin scanning. Recoverit will start scanning. If you can see your lost file, you can stop the scanning as per your convenience.

Step 3: Save

From the list, click on the file you are interested in. The file details such as name, size, and a path will appear on the right side of your screen. You can also click "Preview" to view your file. Click on "Recover" to save the lost file due to stop code - System Thread Exception Not Handled error to the desired location on your PC.

The Bottom Line

Be it stop code - System Thread Exception Not Handled or other BSOD errors, it can interrupt the normal functioning and even lead to lost files. Follow this step-by-step guide to fix BSOD error with stop code - System Thread Exception Not Handled. This error may cause you to lose some files and critical documents, especially if it is on your work computer. Use Recoverit Tool to recover all kinds of lost files including, but not limited to, emails, photos, videos, and more!