System Thread Exception not Handled – If you are getting System Thread Exception not Handled error and want solution to fix System Thread Exception not Handled then we have mentioned more than five methods to fix System Thread Exception not Handled error.

This error mainly occurs due to a driver malfunction. An outdated, corrupted or incompatible driver can get your system into display this blue screen. Outdated drivers and overclocking software’s, or a recently overclocked tweak are also known to cause this BSOD. Here’s How to Fix Nvidia Control Panel Missing Problem

System_thread_exception_not_handled is the bug check message often with names like atikmdag.sys, nvlddmkm.sys, nwifi.sys, etc. that notice the faulty files. This blue screen error is mainly caused by outdated, incompatible or correctly configured drivers. Besides, a recently installed program can also result in the error. Here’s How to Fix Err_Connection_Refused Error

Fix System Thread Exception not Handled

Any time you see “SYSTEM THREAD EXCEPTION NOT HANDLED” in Windows, it usually means a driver on your computer isn’t doing what it is supposed to be doing, and Windows can’t fix it. You see this specific error with graphics card drivers a lot, where the software is trying to make Windows do something it just plain can’t under the current configuration. the System Thread Exception not Handled error looks like below

Causes for “System Thread Exception Not Handled” BSOD:

Boot Volume Problem (Hard disk problem)
Drivers Corruption
Windows Problem
BIOS Corruption

The biggest part of the problem here is that many of the people encountering this issue have found that even completely re-installing Windows does not fix things. Fortunately, there’s a way to fix this. SO below we have added some methods to fix System Thread Exception not Handled error.

How to Fix System Thread Exception not Handled

Sometimes, it will automatically repair itself, reboot the whole Windows operating system and start Windows normally, but most cases, it doesn’t. The blue screen error will be appeared there permanently, or you encounter a restart loop. The loop will start from a blue screen with error message and stop code. So try below fix for System Thread Exception not Handled error.

1. Use SFC /SCANNOW To Repair Windows

Sfc Scan is a great command run by CMD which can help you to repair your Windows by just typing a single command in the Windows Command Prompt.

Open CMD, as an administrator.
Then type the command “Sfc /Scannow” and hit enter. Make sure you don’t close this CMDwindow until the verification gets 100% completed.

Restart your computer and test it.
If the blue screen has gone, then that’s good!! If don’t, then just move to the next solution;

2. Check and Repair Faulty System Files

Corrupted system files can also result in System_thread_exception_not_handled blue screen error and many other issues like that, such as DRIVER_IRQL_NOT_LESS_OR_EQUAL error, 0x0000003B Service Registration is Missing or Corrupt error Windows Kmode Exception not Handled Error, etc. You can use CHKDSK command lines to verify and repair those faulty system files:

Use Windows shortcut keys Win + X to launch the Jump List, and then select Command Prompt (Admin).
Type into the command line CHKDSK C: /F /R and hit the key Enter.
Follow the instruction on screen. Windows 10 will restart and find corrupted files in system. Just wait for a while until it finishes the work.
Your Windows computer will boot up, and start to check and verify the whole system to find any corrupted file.
It might take a while to complete, so please don’t turn off the PC while it’s checking and verifying.

3. Go into Safe Mode and then uninstall the driver

To fix System Thread Exception not Handled error go into Safe Mode and then uninstall the driver or drivers that are causing the problem. To go into Safe Mode from the sign in screen, follow these simple steps:

Grab your Windows 10 computer.
Restart your Windows 10 computer.
Then, press the Shift key and hold it down.
Next, choose the Power option and restart your computer.
Once your Windows 10 restart, press either the 4 key or F4. This will select the start your Windows 10 PC in Safe Mode. You could also press either the 5 key or F5, which will then go to Safe Mode with Networking.

Once you have booted your Windows 10 computer in Safe Mode follow one of the sets of steps above, follow these simple steps to uninstall the problematic drivers:

Hit the following two keys at the same time: The Windows key and the R key. This action will prompt a Run dialog to appear on your screen.
Then, type the following command into the run box: “msconfig” [no quotation marks].
Once you have typed the command in, click on the OK button. This action will prompt the System configuration window to display on the screen.
The System configuration has several tabs. Click on the Boot tab.
Check the Safe boot box.
Click on the Ok button.
Finally, click on Restart.

Once your computer has restarted, you will be in a position to uninstall the problematic drivers in total safety:

Hit the following two keys at the same time: The Windows key and the R key. This action will prompt a Run dialog to appear on your screen.
Then, type the following command into the run box: “devmgmt.msc” [no quotation marks].
Once you have typed the command in, click on the OK button. This action will prompt the System configurationwindow to display on the screen.
Next, you will need to expand the category and search for any devices (drivers) that have a yellow sign displaying next to them. This is how you will identify the driver or drivers causing the error.
Then, you will need to remove each of the problematic errors one by one by right clicking on each of them and selecting uninstall.

Once you have safely removed each and every one of the problematic drivers, you will need to restart your Windows 10 computer. If you did check the Safe boot box when you restarted your computer before, make sure that you uncheck it before restarting your PC this final time.

4. Uninstall Driver which is Causing Issue

Many a times Uninstalling the Driver which is causing the issue fixes System Thread Exception not Handled Error. Go to Device Manager to check for the driver status. Uninstalling the faulty driver might fix the error. Follow these steps to uninstall the driver.

The driver’s file name which is creating the problem actually looks like XXX.sys or XYZ.sys; Whatever it called, but that driver’s file is having the .sys extension at the end of its name. in this case Driver name would be atikmdag.sys

After finding the name, now it’s going to be a lot easier for you to download that particular corrupted driver; After finding the driver name just Update or Uninstall Driver which is causing the System Thread Exception not Handled Error.

1) Press Win+R (Windows logo key and R key) at the same time to invoke the run command.

2) Type devmgmt.msc in the run box and click OK. Then Device Manager will open.

3) In Device Manager, locate the faulty driver. If the driver is having problem, you’ll see a yellow mark next to the device name. Then right-click on the device name (For example, uninstall graphics card driver.) and select Uninstall.

4) Now Click on Uninstall and your driver will be uninstalled.

5) Now Restart your PC and now you need to install drive atikmdag.sys again.

You can Manually Update your Driver or There are Many Softwares to do the Same. If you have less drivers in your PC then you can Update them Manually to Fix System Thread Exception not Handled error.

5. Uninstall the Recently Installed Program

If you can enter Windows 10 after the SYSTEM THREAD EXCEPTION NOT HANDLED blue screen, go and uninstall the program you’ve recently installed. If you are not sure which program or services or startup causes the blue screen, you can perform a clean boot to find out the troublemaker.

6. Do a System Restore

You can restore your windows to previously working Time. Every system generates a system restore Points so if your System Protection is turned on, Windows will create a restore point before you install the driver. Then you can follow these steps to restore the driver to earlier version to fix this issue.

1) Press Win+R (Windows logo key and R key) at the same time to invoke a run box.

2) Type rstrui.exe and click OK. The System Restore Window will open.

3) Click Next then you may see the following screen. Select a restore point that was created before the error occurred. Click Next to continue and follow the on-screen instructions to finish the restore.

4) Reboot your PC and check to see if the problem System Thread Exception not Handled Error resolved.

Hope this method to fix System Thread Exception not Handled Error works for you.

7. Check for BIOS update

The BIOS (Basic Input/Output System) incompatibility, memory conflict or the IRQ (Interrupt Request) conflict can be the cause of the error. So you can try to update the BIOS. You can go to the motherboard manufacturer’s website to check for the BIOS update. Before you head to the website, ensure you know the product name of the motherboard.

If you have no idea the model number of the motherboard, follow these steps:

1) On your keyboard, press the Windows Logo key and R key at the same time to invoke a run command.

2) Type cmd and press Enter.

3) Type below command line or just copy and paste it to the command prompt. Then you’ll get the motherboard manufacturer and the model product number.

wmic baseboard get manufacturer, product

4) You will find the manufacturer and the product number from the CMD.

BIOS downloaded file is either in .zip format or in .exe format. It’s a little complicated to install the BIOS. The manufacturer provides the installation instructions on their website. You should be able to see it when you head to the BIOS download page. Just follow the instructions to install the BIOS. If you’re not comfortable installing BIOS yourself, please contact the manufacturer to help with that.

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How to Fix System Thread Exception not Handled Error