How To Fix ‘Thread Exception Not Handled’ Error


The Blue Screen of Death (BSOD) displays the error SYSTEM Thread Exception Not Handled if the threads responsible for performing essential Windows services fail. Windows 8, 8.1, and 10 users have been the most likely to report it.

Some people describe waiting 10–15 seconds for this issue to appear when Windows loads, while others say it appears instantly, and their PCs keep rebooting in an endless loop, rendering them unable to use any machine.

Ways to Quickly Fix System Thread Exception Not Handled BSOD

The easiest way to determine what is triggering the SYSTEM THREAD EXCEPTION blue screen of death (BSOD), which can appear in a few different ways, is to examine the minidump file, which records crashes.

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What Is System Thread Exception Not Handled Error

A system thread exception was not handled issue occurred, please explain. It’s a Blue Screen of Death message, to be exact. In other cases, the name of the corrupted file may follow the SYSTEM Thread Exception Not Handled error message, as in the cases of atikmdag.sys, nvlddmkm.sys, nwifi.sys, CMUDA.sys, etc.

Typically, a system thread exception not handled fault will result in a stop code of 0x0000007E or 0x1000007E. These errors show that an unhandled exception was thrown by a system thread.

And there are many kinds of exceptions. There are a number of potential root causes for the SYSTEM Thread Exception Not Handled stop code, including incompatible drivers, incompatible systems, memory conflicts, IRQ conflicts, and so on.

The most typical solutions to the system thread exception not handled problem are outlined in the next section.

Fix 1. Check Error Log File

Entering Windows or Safe Mode is necessary for this procedure. Here is how to enter safe mode on startup.

Step 1: To enter WinRE, boot the computer.

Step 2: Launch the computer in secure mode.

Step 3: When booting into WinRE, select Troubleshoot > Advanced options.

Step 4: Choose the Startup Settings tab and hang tight.

Step 5: In order to boot into safe mode, press the F5 key and select the Activate Safe Mode with Networking option.

Fix 2. Run Memory Diagnosis

Any logical memory issues found during a memory diagnostic will be investigated and corrected. To learn more, please read on.

Step 1: One of the first things you should do is boot into Windows or Safe Mode.

Step 2: The next thing to do is a memory test.

Step 3: On the run dialog that appears, enter “mdsched.exe” by pressing the Windows key plus the letter R.

Step 4: If Windows Memory Diagnostics prompts you to restart and check for issues, choose the option to do so immediately.

Step 5: Do not proceed with any more actions until the computer has finished its memory diagnosis. It takes only a few minutes to complete this task.

Step 6: See what happens in the system’s Event Viewer.

Fix 3. Rename the Faulty File

Users should rename the file once they have retrieved the name associated with the system thread exception not handled issue. If you do this, Windows will do a fresh installation.

All drivers can be found in the C:WindowsSystem32drivers folder. To change the name of the file, do the following:

Step 1: To access the drivers, use Explorer and navigate to C:WindowsSystem32.

Step 2: Find the affected motorist

Step 3: To activate, use the F2 key.

Step 4: extension should be changed to.old.

Step 5: Use the enter key to force a system reboot.

Fix 4: Disable Fast Startup

In Windows 10, Microsoft introduced a new feature called rapid startup, which significantly sped up the boot process.

Apparently, certain Windows users have been System Thread Exception Not Handled is a known issue. If you turn off fast startup, the Blue Screen of Death error should go away.

Step 1: Turn on the switchboard.

Step 2: Consider and pick alternate sources of energy.

Step 3: Decide what the power buttons do.

Step 4: If there are any options that you cannot access, please change them.

Step 5: Clear the box labeled “allow quick startup” (recommended). Choose OK to commit your modifications.

Step 6: Then, try again after restarting Windows. The Blue Screen of Death caused by a System Thread Exception That Wasn’t Handled has been fixed.

Fix 5. Update or Reinstall the Drivers

In most cases, updating, rolling back, or reinstalling drivers to an earlier version will fix driver incompatibilities.

Step 1: Right-click on each piece of hardware that requires a driver, and then pick Update from the menu that appears. Disk drives, speakers, microphones, network and video adapters are all built in. To do this, go to your device’s settings, then choose “update driver.” The most recent version will be sought out mechanically.

Step 2: To roll back drivers, open the device manager, then right-click on each piece of hardware with a driver and select “properties.” After that, choose the “rollback” option on the “driver” page. Make sure you do the click!

Step 3: The device must be removed before its driver may be reinstalled. You will then need to locate your device on the manufacturer’s website, download and install the latest recent driver, then restart your system.

Fix 6. Update Firmware

Updates to the firmware can fix any existing issues and hardware compatibility issues. If implemented, it could improve the reliability of computers. If you want to know how to upgrade the firmware on your device, read on.

Step 1: The first thing to do is check the BIOS version.

Step 2: Simply hit the “Windows + R” keys simultaneously.

Step 3: To access System Configuration, enter “MSConfig” into the run box and hit the OK button.
Step 4: Click the Tools button.

Step 5: Choose System Info then hit the Play button.

Step 6: When doing so, be sure to write down the BIOS’s version and date.

Step 7: For the most up-to-date BIOS, please visit the manufacturer’s website.

Step 8: To upgrade the firmware, insert the USB with the new BIOS onto the system and boot into BIOS.

Step 9: There is more to updating the firmware than what was included in the preceding overview.

Step 10: Please do some research on the topic before attempting the firmware upgrade.

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The driver usually fails and causes this error. This blue screen can appear if your system has a driver that is either out-of-date, corrupted, or incompatible. This blue screen of death might also occur as a result of using outdated drivers or overclocking software, or after a recent overclocked modification.

If a newly installed program or driver is suspected as the source of the problem, uninstalling it and waiting for a patch or updated driver to be published is the recommended next step.


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