Windows 10 “System Thread Exception Not Handled” BSOD (blue screen of death) error is associated with faulty, outdated, or corrupt device drivers. In most cases, the stop code (usually 0x0000007E or 0x1000007E) is quite easy to solve. Updating or rolling back a specific driver is enough to prevent the error from happening again.
But rarely, you might have to work your way through various advanced solutions to fix things. Before you begin, however, you need to identify the problematic device driver behind the “System Thread Exception Not Handled” BSOD.
Identify problematic driver
Whenever you encounter a “System Thread Exception Not Handled” BSOD error, you will see the failed system driver (.sys) listed next to it. Several drivers causing the error include:
- 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 picture of the BSOD “System Thread Exception Not Handled” screen the next time this happens. Then do an online search with the (somewhat cryptic) filename of the system driver to identify the associated device driver.
If you can’t wait for Windows 10 to encounter the “System Thread Exception Not Handled” error again, download and run the free BlueScreenView applet from Nirsoft. It automatically analyzes BSOD dump files and passes on the driver file that is causing the problem.
If the “System Thread Exception Not Handled” BSOD appears without indicating a specific driver file, it is still a good idea to use the following troubleshooting tips to update drivers related to components such as graphics and audio, back to run or reinstall.
Update device driver
The “System Thread Exception Not Handled” BSOD error generally stems from outdated hardware drivers, such as those related to the video card.
Visit the device manufacturer’s website and download the latest driver for that device. Then run the executable file to update the drivers.
In cases where you are having trouble finding specific device drivers online, you can: use a driver update utility to automate the procedure.
Install Windows 10 updates
The latest Windows 10 updates not only contain various fixes for bugs and issues that occur while using your PC, but they also come with hardware driver updates. You have to install them.
1. Open the Get started menu and select Settings†
2. Choose the Update and security option and choose 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.
Roll back device driver
New driver updates can also cause problems. If the BSOD error “System Thread Exception Not Handled” appeared immediately after updating a device, you need to roll that back.
1. Press Windows † X and select the option labeled Device Manager†
2. Locate and right click on the device you want to roll back. For example, if you igdkmd64.sys filename next to the “System Thread Exception Not Handled” error, you need to select your Intel graphics card.
3. Select Properties†
4. Switch to the Driver tab.
5. Select Roll back driver†
Uninstall and reinstall device driver
If updating or rolling back a driver didn’t help, reinstall it instead. That should help rule out a “System Thread Exception Not Handled” BSOD caused by corrupt hardware drivers.
1. Press Windows † X and select Device Manager†
2. Right click on the device driver you want to uninstall.
3. Select Remove device†
4. Check the box next to Uninstall the driver software for this device (if you see such an option) and select remove†
5. Restart your computer.
The operating system should automatically reinstall the device driver. Update it by downloading and applying the latest driver from the manufacturer’s website.
Fix corrupted files and disk errors
If none of the above solutions work, you can use the System File Checker tool, DISM (Deployment Image Servicing and Management) and Check Disk tool to check and repair corrupted files and disk errors in Windows 10.
You can run all three tools from an elevated Windows PowerShell console. Press Windows † X and select Windows PowerShell (administrator) to open PowerShell with administrator privileges.
Run System File Checker
The System File Checker repairs corrupt system files in Windows 10. Run it with the following command:
Run the DISM tool
The DISM tool fixes stability issues in Windows 10. Run the three commands below one by one:
DISM /Online /Clean-Image /CheckHealth
DISM /Online /Cleaning-image /ScanHealth
DISM /Online /Clean-Image /RestoreHealth
Run Check Disk Utility
The Check Disk utility repairs disk errors. Run it with the following command:
chkdsk c: /r
Using System Restore
Another viable way to fix the BSOD “System Thread Exception Not Handled” is to restore the operating system to an earlier state. To do that, however, you should have set up system restore in Windows 10 earlier.
1. Press Windows † stype system securityand select Open†
2. Switch to the System security tab and select System recovery†
3. Follow the instructions of the System Restore wizard to restore Windows 10 to a specific restore point.
Reset Windows 10
Still running into the “System Thread Exception Not Handled” BSOD?
You can eliminate any underlying issues behind the error by: Factory reset Windows 10† It’s a bit like reinstalling the operating system, but you can choose to leave personal files intact if you’d like.
1. Open the Settings app in Windows 10.
2. Select Update and security†
3. Switch to the recovery side tab.
4. Select Get started†
5. Follow the on-screen instructions to reset your PC.
System thread exception handled
The above solutions probably helped you to fix the BSOD error “System Thread Exception Not Handled” on your computer. If not, there are a few other things you can do:
If that still doesn’t help, you’re probably dealing with a faulty hardware component. Contact your local PC repair service for assistance.