How To Fix System Thread Exception Not Handled Error?

Facing system thread exception not handled error? At TechUntouch we are sharing working to fix this issue on your computer.

You expect the computer to turn on when you press the Power button. But in a few cases, many of us may see the blue screen with system thread exception, not handled error. This blue screen of death (BSOD) may pop up as soon as your computer boots up, or it may take 10-15 seconds for the computer to turn on the error, and then you will encounter the blue screen.

This error usually appears when you start your pc and traps your computer in the reboot loop. It makes it impossible to use the computer. If you face the same problem and want to solve it with easy steps, continue reading this article to know more details.

System Thread Exception Not Handled Error

What Is The System Thread Exception Not Handled Error?

The system thread exception not handled error shows that your computer has created an exception for a mistake that is missed by the system thread handler. Unable to fix the error, the blue screen of death collects and stores information about the computer error as a result.

The following numbers often accompany this stop code: 0x0000007E, 0x1000007E, or, if you are lucky, the file name that caused the error: atikmdag.sys, nvlddmkm.sys, igdkmd64.sys, etc. Unfortunately, with this particular error, the computer will always end up in a reboot cycle, and you will need to use Safe Mode to crash it.

Why Does System Thread Exception Not Handled Error Occur?

The system thread exception not handled error happens when you start your computer from restart or turn off. However, this can occur from time to time and pop up when the user runs a program that requires specific graphics drivers to work.

An obsolete, corrupt, or obvious error occurs when the unsupported driver is installed in pc (usually graphic drivers) on a computer. Graphic drivers can be installed incorrectly, and this is another reason why Windows 10 gets “system_thread_exception_not_handled.”

What Does The Error Code Mean?

If you’re lucky, the file name will be added to the “system thread exception not handled” error code, indicating which graphics driver is causing the issue. If you update/repair this graphic driver, you can completely fix the error. The following are common filenames with this BSOD error.


This graphics driver belongs to the ATI Radeon family associated with your ATI video card. If your pc has an AMD installed graphics card, its drivers are incorrectly installed or out of date.


This graphic driver is for the Nvidia Windows kernel driver associated with your Nvidia video card. If you have an Nvidia powered graphics card installed, this means the drivers for this card are incorrectly installed or out of date.


This is correlated with the DirectX drivers you have installed.


This is for Windows NT Server.


This is for a Broadcom 802.11 network adapter. This adapter requires a wireless driver developed by Broadcom Corporation. If this is incorrect or out of date, you may receive a “system thread exception not handled” error.


This is a driver associated with USB device audio.

If the error pops up and you have any of the above, you need to uninstall the driver and reinstall or update. If another system file is paired with the error code, you should search the driver file name online to determine which driver is causing the problem.

Suppose the system files do not come with any errors. In that case, you should update all major drivers on your network, including any network, wireless drivers, LAN, sound and audio drivers, and display drivers (graphics).

Fix “System Thread Exception Not Managed” In Windows 10

The first thing you need to do is boot into safe mode, as this will let you break the loop of reboot that you will inevitably get stuck in. Since your settings are inaccessible, we are about to boot into the Windows Recovery Environment (WinRE) before enabling Safe mode.

Step 1: First, you need to hold on to the power button for at least 10 seconds; then it will turn off. When it is completely off, press the power button again to turn it back on.

Step 2: As soon as you see any icon when Windows starts (like a logo), hold down the power button for 10 seconds. Now you need to press the power button to restart pc.

Step 3: Restart your device entirely and repeat this process until you enter the winRE environment.

To switch from WinRE to Safe Mode, you must select the “Troubleshoot” option from the list. Then you have to choose “Advanced Options,” “Initial Settings,” and lastly, click on Restart. After restarting your computer, you will be presented with a list of options. You want to press F5 for safe mode with networking.

1. Identify the faulty driver:

There are many ways you can find faulty drivers, but the easiest way is to check the system log that tracks events. To do it, you need to open the event viewer.

Step 1: Press the Windows key + R to pull up the “Run” dialog box on your keyboard.

Step 2: Enter “eventvwr” in the box and press OK.

Step 3: Now you need to open “Windows Logs” and press on the drop-down menu.

Step 4: Click “System” from the drop-down menu to see all recent events.

Step 5: Look for the “system thread exception not handled” error & see which driver is associated with it.

2. Update, backup, or reinstall your drivers

It is the easiest way to fix incompatible drivers. Update them, bring them to the previous version, or reinstall them after uninstalling if you have the latest version.

Step 1: For doing this, you need to open your Device Manager by typing “Device Manager” in your computer search or by pressing the Windows key + X and selecting “Device Manager.”

Step 2: For updating your drivers, you need to go through your device list and right-click on all the hardware that contains the driver, and select Update.

Step 3: It includes your disk drives, audio devices, network adapters, audio devices, and display adapters. Click on “Update Driver,” and your system automatically searches for the latest updated version.

Step 4: To roll back your Drivers, you have to first go through your device list and right-click on all the hardware that contains the driver, and then select “Properties.”

Step 5: Then navigate to the “Driver” tab and click on the “Roll Back” option. Click, Yes!

Step 6: To reinstall the driver, you must first uninstall the device. Next, navigate to the device manufacturer’s website, where you will find your device, download the latest driver for that device, and install it manually.

3. Change the wrong driver name:

If you have a filename associated with the “system thread exception not handled” error, you can change the driver name at any time, and Windows will get a new copy and reinstall. You need to know on which hard drive the driver was first installed.

Step 1: You have to open a command prompt application by searching for “command prompt” or type “cmd” in your computer search.

Step 2: Then, type in the command prompt box, C: (press Enter) cd windows \ system32 \ drivers (press enter) ren FILENAME.sys FILENAME.old (rename file here with the wrong driver file listed with error code).

Step 3: Lastly, you need to type “Exit” and restart the computer.

4. Fix your system files

If you feel that system files affecting your device drivers are corrupted, you can repair them by running Windows repair programs, SFC and DSM.

Step 1: To execute SFC, you have to open the command prompt as Administrator. If you have turned on the safe mode, you can find the Command Prompt option under “Advanced Options” in the list.

Step 2: Type SFC/scannow and press your Enter key. It replaces damaged lost or altered system files.

Step 3: If the problem still persists after running SFC, you can run DSM to restore your computer’s “health.”

Step 4: Open a command prompt from the search bar. Make sure you open it as an administrator. Once the black window opens, type the following one by one.


And this will repair the damaged files.

5. Restore your PC to a previous version

If you make backups of your pc, you can restore it to a previous time without receiving the “system thread exception not handled” error. However, to do this, you need a system repair disk or a recovery drive for Windows.

Step 1: First, you have to insert the system repair disc into the computer and select your language preference.

Step 2: Now, click on the Repair option and select the Troubleshoot and Advanced options.

Step 3: Then select System Restore and follow the instructions provided.


Uninstalling, reinstalling, and updating erroneous drivers solves most problems. Those who have completed these ways and are still experiencing an error may want to consider a clean reinstall of the operating system.

I hope this article helps you to fix system thread exception not handled error. Comment below if you have any questions and mentioned the kind of errors you encounter while using PC.

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