Fix a System Thread Exception Not Handled BSOD

How to Fix a System Thread Exception Not Handled BSOD Guide

The System Thread Exception Not Handled BSOD (blue screen of death) error in Windows 10 is caused by faulty, obsolete, or corrupt device drivers. In most cases, the stop code (usually 0x0000007E or 0x1000007E) is relatively simple to troubleshoot. However, update or roll back a specific driver to prevent the error from recurring.

Yet, in rare cases, you may need to work through several advanced fixes to get things back on track. However, before you begin, you must identify the problematic device driver causing the “System Thread Exception Not Handled” BSOD.

Identify Problematic Driver

When you run a “System Thread Exception Not Handled” BSOD error, the failed system (.sys) driver file will be listed right next to it.

Among the drivers that cause the error is:

• nvlddmkm.sys — NVIDIA graphics driver 

• igdkmd64.sys — Intel graphics driver

• atkimpag.sys — AMD graphics driver 

• hidclass.sys — Mouse or keyboard driver

• acpi.sys — Windows ACPI driver 

• rtkvhd64.sys — Realtek audio driver 

• syntp.sys — Synaptics Touchpad driver

• tcpip.sys — Network card driver 

• usbxhci.sys — USB driver

Take a screenshot of the “System Thread Exception Not Handled” BSOD screen the next time it happens. Then, using the (somewhat cryptic) system driver file name, conduct an online search to identify the associated device driver.

If you can’t wait until Windows 10 encounters the “System Thread Exception Not Handled” error again, download and run Nirsoft’s free BlueScreen View applet. It automatically analyses BSOD dump files and relays the problematic driver file.

System Thread Exception Not Handled

If the “System Thread Exception Not Handled” BSOD appears without indicating a specific driver file, it’s still a good idea to use the troubleshooting tips that follow to update, rollback, or reinstall drivers related to components such as graphics and audio.

Update Device Driver

The “System Thread Exception Not Handled” BSOD error is usually caused by out-of-date hardware drivers, such as those for the video card.

Navigate to the device manufacturer’s website and download the most recent driver for the device at hand. Then, to update the drivers, run the executable.

If you have difficulty locating specific device drivers online, you can use a driver updater tool to automate the process. Also check how to download Windows 10 ISO without the Media Creation Tool.

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Install Windows 10 Updates

The most recent Windows 10 updates not only include various fixes for bugs and issues that may arise while using your computer, but they also include hardware driver updates. Therefore, you must install them up.

1. Select Settings from the Start menu.

2. Select Update & Security and then Check for updates to start a scan for new updates.

3. Select Download and install to update Windows 10, and View all optional updates to select and install hardware driver updates. Also read how to disable Windows Superfetch.


How to Install Windows 10 Updates

Roll Back Device Driver

New driver updates may also introduce issues. For example, if you get the “System Thread Exception Not Handled” BSOD error right after updating a device, you must roll it back.

1. Press Windows + X and select the Device Manager option.

2. Navigate to and right-click the device you want to roll back. If you see the igdkmd64.sys file name alongside the “System Thread Exception Not Handled” error; for example, you must select your Intel graphics card.

3. Choose Properties.

How to Roll Back Device Driver

4. Navigate to the Driver tab.

5. Select Roll Back Driver.


Roll Back Driver

Remove and reinstall the Device Driver

If updating or reverting a driver does not help, you must reinstall it. It should eliminate the possibility of a “System Thread Exception Not Handled” BSOD caused by corrupt hardware drivers.

1. Select Device Manager by pressing Windows + X.

2. Right-click the device driver you want to remove and select Delete.

3. Select Uninstall device.

How to Reinstall Device Driver

4. Select Uninstall and check the box next to Delete the driver software for this device (if available). 

Delete the driver software for this device

5. Restart your computer.

The operating system should automatically reinstall the device driver. Download and update the most recent driver from the manufacturer’s website to keep it up to date. Also check how to fix COM Surrogate Windows 10 Virus


Repair Corrupted Files and Drive Errors

If none of the above fixes worked, you could use Windows 10’s System File Checker, DISM (Deployment Image Servicing and Management) tool, and the Check Disk Utility to check for and repair corrupted files and disc errors.

All three tools can be run from an elevated Windows PowerShell console. For example, to open PowerShell with administrative privileges, press Windows + X and select Windows PowerShell (Admin).

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Run System File Checker 

In Windows 10, the System File Checker fixes corrupt system files. Use the following command to put it into action:

sfc /scannow

How to Run System File Checker

Run DISM Tool

The DISM tool fixes stability issues in Windows 10. First, run the three commands listed below in the order listed:

DISM /Online /Cleanup-Image /CheckHealth

DISM /Online /Cleanup-Image /ScanHealth

DISM /Online /Cleanup-Image /RestoreHealth


Run Check Disk Utility

Run Check Disk Utility to repair drive errors. Use the following command to run it:

chkdsk c: /r


Use System Restore

Another viable option for resolving the “System Thread Exception Not Handled” BSOD is to fix back the operating system to a previous state. However, to do so, you must first enable System Restore in Windows 10.

1. Press Windows + S, then type system protection and select Open.

2. Select System Restore from the System Protection tab.

3. Follow the instructions in the System Restore wizard to restore Windows 10 to a specific restore point.


How to Use System Restore

Reset Windows 10

Do you continue to get the “System Thread Exception Not Handled” BSOD? By resetting Windows 10 to factory defaults, you can eliminate any underlying issues causing the error. It’s similar to reinstalling the operating system from scratch, but you can keep your files intact if you prefer.

1. open the Windows 10 Settings app.

2. Select Update & Security.

3. Navigate to the Recovery sidebar.

4. Click the Get Started button.

How to Reset Windows 10

5. To reset your PC, follow the on-screen instructions.


System Thread Exception Handled

The solutions listed above most likely assist you in resolving the “System Thread Exception Not Handled” BSOD error on your computer. If not, here are a few other options for you:

• Update your computer’s BIOS.

• Restore any overclocked components (such as the GPU) to their factory settings.

• Reinstall Windows 10 from scratch.

• Execute memory diagnostics.

• Ensure that the hardware inside your computer is clean.

If that doesn’t work, you’re probably dealing with a faulty hardware component. For assistance, contact your local computer repair service.

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