It’s a common Windows 11 error that you may run into. What causes this, and how to fix it?

The “kmode exception not handled windows 10 fix” is a problem that has been present for a while. Microsoft has released 8 fixes to fix the issue.

Windows 11 error Kmode Exception not Handled


Loredana Harsana (Loredana Harsana)

Windows & Software Expert

Loredana is a dedicated writer who is fascinated by computer software and technology. She began blogging about smartphones when the Samsung Galaxy S II was the most popular device on the market, and… Read more

  • A conflict between your graphics card drivers is indicated by the Windows 11 error Kmode Exception not Handled.
  • You might try reinstalling the defective drivers as a first step.
  • We recommend disabling early start anti-malware protection instead.



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The Windows 11 issue Kmode Exception not Handled is often seen during or shortly after the installation of the operating system.

Some customers who have successfully installed Windows 11 have claimed that they are unable to keep their PC running for more than 2 minutes without receiving a BSoD with this error.

Follow along as we walk you through troubleshooting the Kmode Exception not Handled problem in Windows 11, starting with determining what triggered it in the first place.

What caused the issue Kmode Exception not Handled in Windows 11?

We’ve compiled a list of potential explanations for this issue, but bear in mind that your individual situation may be affected by others that we haven’t yet identified:

  • Antivirus software from third parties — One antivirus package has been recognized as a cause of the issue, but there may be others that have not yet been discovered.
  • A situation with earlier BIOS firmware versions of your motherboard that triggered is another reason you should expect to have this problem.
  • System File Corruption – It’s also conceivable that system file corruption is to blame for the overall system instability that causes this error code to occur in certain circumstances.
  • Graphics card drivers that are incompatible – If you experienced this problem when trying to upgrade to Windows 11, it’s likely that you’re dealing with conflicting drivers that are interfering with the installation of the new operating system.
  • Physical RAM damage – The issue is mainly caused by the defective RAM stick’s inability to keep up with the voltage applied to it. The only method to stop the crashes is to remove and replace the problematic RAM stick, or to use just one RAM stick.

Let’s go into the list of remedies for the Windows 11 issue Kmode Exception not Handled now that you’re more aware with the possible reasons.

In Windows 11, how can I repair the Kmode Exception not Handled error?

1. Remove the graphics drivers from your computer.

  1. Start by right-clicking on the Start icon and selecting Device Manager from the drop-down menu.1647505426_573_Windows-11-error-Kmode-Exception-not-Handled
  2. Right-click each option in the Display adapters section after expanding it. Now, as seen below, click on Uninstall device. 1647505427_130_Windows-11-error-Kmode-Exception-not-Handled
  3. Finally, restart your computer to have the graphics drivers reinstalled automatically. That concludes our discussion.

We’ve said it before, and we’ll say it again: keeping your drivers up to date and taking care of them is critical. As a result, we propose DriverFix, a specialist solution that updates and fixes driver issues automatically.

2. Disable anti-malware protection for early launches.

  1. From your Taskbar, pick the Start menu icon, then the Power button.1646834200_534_Thats-how-you-can-repair-BCDEdit-in-Windows-11
  2. Hold down the Shift key when selecting the Restart option.
  3. Select Troubleshoot followed by Advanced options after you’ve been sent to the blue screen below.1646834201_675_Thats-how-you-can-repair-BCDEdit-in-Windows-11
  4. Finally, click the Restart button after selecting Startup Repair.1646834202_937_Thats-how-you-can-repair-BCDEdit-in-Windows-11
  5. After your computer has booted into the Startup Settings screen, use the F8 key to deactivate early-launch anti-malware protection. That concludes our discussion.1647505430_441_Windows-11-error-Kmode-Exception-not-Handled

Another vital step in guaranteeing your computer’s sound operation is to protect it from spyware and viruses. We use and suggest ESET, a Slovak antivirus software application that delivers high-quality protection against computer threats, to all of our readers.

More information about this subject may be found here.

3. Make a BIOS update.

  1. You’ll need to go to your motherboard manufacturer’s website for this one. For example, we’ll go to Lenovo’s website and click on PC to locate the necessary upgrades.Windows-11-error-Kmode-Exception-not-Handled
  2. Then navigate to the Drivers & software section after locating your model and entering its number into the search bar, as we have shown below.1647505432_379_Windows-11-error-Kmode-Exception-not-Handled
  3. Find and download the most recent BIOS update for your machine. The next procedures will need the use of a flash drive.1647505433_611_Windows-11-error-Kmode-Exception-not-Handled
  4. To relocate the downloaded file, click This PC, then your flash drive, following the instructions on their website.1647505434_69_Windows-11-error-Kmode-Exception-not-Handled
  5. To open the BIOS menu, restart your computer and keep hitting F2 or Del.
  6. Choose the downloaded file from your flash drive after selecting the BIOS update option. Continue with the restarting procedure when the process is completed. That concludes our discussion.

Check out our page on what to do if you receive a BSoD much too frequently and don’t know how to solve it for additional information on BSoD problems.

As a bonus, you can read about how to fix the Kmode exception not handled error on Windows 10 & 11 in case you need more solutions as it addresses the same issue.

Finally, if you face this issue on a reboot, see our post on how to cure the dxgmms2.sys error in Windows 11.

Please let us know which approach worked best for you in the comments area below. Thank you for taking the time to read this!

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The “kmode exception not handled 2021” is a Windows 11 error that can be caused by many things. This article will help you fix the issue.

Frequently Asked Questions


A: KMODE_EXCEPTION_NOT_HANDLED is a Microsoft error that indicates the system has encountered an unexpected condition on boot. This may happen if you have installed new hardware or driver software, or there are other problems with your PCs configuration.

What Windows stop code?

A: The Windows stop code is a series of codes that can be entered into the command prompt to get information on how your computer stopped.

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