Understanding and Fixing the “System Thread Exception Not Handled Error

Another common issue faced by the users these days is the System Thread Exception Not Handled error. The error prevents you from logging into Windows. The System Thread Exception Not Handled error usually occurs during booting of your computer system.

There are a few possible reasons triggering the System Thread Exception Not Handled error. The most prominent reason is incompatible drivers.

Don’t worry! As here are four quick methods to solve the bothersome System Thread Exception Not Handled error in no time.

What Does “System Thread Exception Not Handled” Mean?

The “System Thread Exception Not Handled” error typically occurs when a system thread in your computer’s operating system generates an exception that the system cannot handle.

A system thread is a part of the operating system responsible for handling various tasks, such as processing requests from hardware or managing system processes.

When something goes wrong with these threads—like encountering unexpected or invalid data—the operating system triggers this BSOD error to prevent further damage.

This error often includes additional information, such as a specific file name (e.g., nvlddmkm.sys, atikmdag.sys) that helps identify which driver or system component caused the issue.

Causes of the “System Thread Exception Not Handled” Error

Several factors can trigger the “System Thread Exception Not Handled” error:

1. Outdated or Corrupted Drivers

One of the most common causes is outdated, incompatible, or corrupted drivers, especially graphics drivers. When a driver fails to work properly with the system, it can cause the error.

2. Incompatible Software

Recently installed software that is not compatible with your operating system can lead to this error, particularly if the software interacts with critical system components.

3. Corrupted System Files

Corrupted or missing system files can cause the system to malfunction, leading to the “System Thread Exception Not Handled” error.

4. Hardware Issues

Faulty hardware components, such as RAM, hard drives, or GPUs, can cause this error if they fail to operate correctly with the system.

5. BIOS or Firmware Issues

In some cases, outdated or misconfigured BIOS settings can lead to system thread exceptions, particularly if the BIOS fails to manage hardware correctly.

How to Fix System Thread Exception Not Handled Error

Method 1: Renaming of the Dilemmatic Driver

Follow the Steps given below rename the driver:

Step 1 – First of all, insert the Windows Recovery Drive or System Repair Disk in your computer system.

Step 2 – Now, choose any desired language and then click on Next.

Step 3 – Navigate to Repair in the bottom left pane.

Step 4 – Now, select Troubleshoot option and then click on ‘Advanced Option’.

Step 5 – Now, select the Command Prompt option and type in the following commands one by one:

C:cd\windows\system32\drivers

ren FILENAME.sys FILENAME.OLD

Step 6 – Finally, type Exit and close the command prompt.

Step 7 – At last, Restart your computer system.

Check for the Thread Exception Not Handled error again. If the error still pops up, try the next method.

Method 2: Uninstall of the Malfunctioning Driver

The malfunctioning drivers could be the reason triggering the error. So, uninstalling such driver is the prominent solution in this case.

Follow the Steps given below to uninstall the malfunctioning driver:

Step 1 – First of all, insert the Windows Recovery Drive or System Repair Disk in your computer system.

Step 2 – Now, choose any desired language and then click on Next.

Step 3 – Navigate to Repair in the bottom left pane.

Step 4 – Now, select Troubleshoot option and then click on Advanced Option.

Step 5 – Now, select the Command Prompt option and type in the following command and press enter: bcdedit /set {default} bootmenupolicy legacy

Step 6 – Finally, type Exit and close the command prompt.

Step 7 – At last, Restart your computer system.

Step 8 – Now, press the F8 key continuously to enter into the Advanced Boot Option screen.

Step 9 – Then, select Safe Mode.

Step 10 – Now, press the Windows Key and R together to open the run command dialog box.

Step 11 – Type devmgmt.msc in the Run command dialog box.

Step 12 – The device managers will pop open. Uninstall the malfunctioning drivers from the device managers.

Step 13 – To uninstall any driver, right click on the respective driver and select uninstall. Then, click on OK to confirm Uninstallation.

Step 14 – Later, Install the updated drivers from the official websites again.

Step 15 – Finally, Restart your computer system.

Check for the System Thread Exception Not Handled error again. If the error still pops up, try the next method.

Method 3: Restoring your PC to a former moment

Follow the Steps given below to restore your computer system to a former moment:

Step 1 – First of all, insert the Windows Recovery Drive or System Repair Disk in your computer system.

Step 2 – Now, choose any desired language and then click on Next.

Step 3 – Navigate to Repair in the bottom left pane.

Step 4 – Now, select Troubleshoot option and then click on Advanced Option.

Step 5 – Now, select the System Restore and follow the onscreen instructions to restore your computer system.

Step 6 – Finally, Restart your computer system to implement the changes.

Check for the System Thread Exception Not Handled error again. If the error is still prevalent, try the next method.

Method 4: Try Using Hardware Acceleration

It is an option of last resort. If none of the methods mentioned above were able to fix the System Thread Exception Not Handled error, try using hardware acceleration only when required.

Step 1 – Begin by launching Google Chrome.

Step 2 – Now, choose Settings option from the menu icon. Then, select Show Advanced Settings from the bottom.

Step 3 – Now, uncheck the box in front of the Use Hardware Acceleration When Required option.

Step 4 – Finally, restart your computer system for the changes to occur.

Conclusion

Hopefully, one of the four methods mentioned above were able to fix the System Thread Exception Not Handled error.

It is another irritating error interfering with the user experience. However, a little patience and hard-work can solve such complicated errors too.

FAQs

Why does the “System Thread Exception Not Handled” error occur?

This error typically occurs due to outdated or corrupted drivers, incompatible software, corrupted system files, or hardware issues that cause the operating system to crash.

Can outdated BIOS cause the “System Thread Exception Not Handled” error?

Yes, an outdated or misconfigured BIOS can cause this error, particularly if it fails to manage hardware components properly.

Is it safe to update BIOS to fix this error?

Yes, updating your BIOS can fix compatibility and stability issues, but it should be done carefully following the manufacturer’s instructions to avoid potential risks.