After attempting to duplicate the issue on our own devices and examining user reports, we were able to identify the root cause of this issue among early Windows 11 adopters.
The KMODE EXCEPTION NOT HANDLED problem can be traced back to a number of possible causes. Examine the following suggestions to see whether any are appropriate to your situation –
Conflicting graphics card drivers are to blame for the accident. Windows 11 upgrade errors like these are usually caused by conflicting drivers that prevent the new operating system from being installed properly.
Other people in the same boat have reported success deleting the old drivers with DDU and then installing the new ones while the generic updates are still being applied.
It’s a bad memory stick – If you’re using a Dual Channel setup, you’re more than likely going to run into this problem after a few minutes of gameplay.
The malfunctioning RAM stick’s inability to keep up with the allocated voltage is the most common cause of the problem.
Taking out the faulty RAM stick and getting a new one, or using the computer with a single RAM stick, is the only way to halt the crashes in this situation.
3rd party AV – facilitates the conflict One AV suite (McAfee) has been identified as the source of the problem, but it’s possible that there are more.
Disabling anti-malware protection in the early stages of startup is a good way to see if your antivirus software is to blame.
As it turns out, EspoDriver.sys is also responsible for this type of problem on Windows 11 in the esports anti-cheating driver category. In order to get rid of it, you’ll first have to get rid of the parent application that uses it (Esportal).
This error can also be caused by an older version of your motherboard’s BIOS firmware that was affected by a problem and has since been fixed by a newer version of the BIOS. If this is the case, updating your BIOS to the current version should solve the problem.
In some cases, system file corruption may also be to blame for the system instability that causes this error code.
A clean install or repair install of your present operating system will ensure that you replace every corrupted system file with a healthy one.
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How to Fix KMODE EXCEPTION NOT HANDLED Error?
Here are the exact remedies that have worked for so many Windows 11 customers who have encountered the KMODE EXCEPTION NOT HANDLED error –
DDU can be used to remove graphics card drivers.
You should check to see whether you’re dealing with a conflicting driver if you get the KMODE EXCEPTION NOT HANDLED issue during the process of installing the Windows 11 Insider update (or if you’re using a compatible installation media or ISO).
A blue screen during the upgrade process to Windows 11 can be caused by both Nvidia and AMD (but usually AMD) graphics drivers.
Users who have seen this issue speculate that a kernel file that is hard-stopped by a security check has something to do with it.
That being said, there is an easy solution for you if this situation sounds like it could be yours: utilise the DDU (Display Driver Uninstaller) in order to get rid of all of the specific drivers on your computer and replace them with the generic ones.
The KMODE EXCEPTION NOT HANDLED error should no longer be a problem after you’ve switched to a generic equivalent.
Follow the actions outlined in the following paragraphs to get the most out of this experience –
Step 1: Open your browser and go to the Display Driver Uninstaller’s Download page.
Step 2: Scroll down to the Download Locations section and select the mirror that is nearest to your physical location once you’ve found the relevant page.
Step 3: DDU tools are now available for download.
Step 4: DDU files can be extracted using a third-party application like 7Zip or WinZip (or a similar utility) once the download is complete.
Step 5: To run Display Driver Uninstaller, navigate to the folder where the DDU archive was extracted and double-click the executable file.
Step 6: When the User Account Control popup asks if you want to allow admin access, click Yes.
Step 7: In the main Display Driver Uninstalling window, select GPU from the drop-down menu titled Select device type.
Step 8: To begin the cleanup process, click on Clean and restart.
Updating the Graphics Card Drivers
Step 1: Remove all drivers and their dependencies from your computer after you confirm the operation.
Step 2: To avoid the recurrence of the error, do not attempt to reinstall the AMD or Nvidia dedicated support drivers after the initial installation has been completed.
Step 3: As an alternative, you might try a fresh Windows 11 upgrade and check if the issue has been resolved.
Step 4: If this strategy didn’t work for you or you’d already tried it and it didn’t make a difference, continue on to the next possible solution below.
Dispose of the Malfunctioning RAM Module (If Applicable)
When using a dual-channel RAM kit, this problem can also be caused by malfunctioning RAM, according to research.
The KMODE EXCEPTION NOT HANDLED problem has been known to be fixed indefinitely by removing the bad USB stick and re-botting the system with the remaining one.
Even if this works, it’s not ideal because your performance will be affected. Even if you can’t get a new RAM stick for your Windows 11 PC right away, this method has been tried and true.
Remove Malfunctioning Ram Stick
If you’ve tried this procedure and found that the KMODE EXCEPTION NOT HANDLED issue is still occurring on a regular basis despite removing both of the suspect RAM sticks, continue on to the next step.
Disable your anti-malware program’s early startup protection (if applicable)
Expect unforeseen conflicts between kernel processes and 3rd-party processes while Windows 11 is still in its infancy, as with any new operating system.
KMODE EXCEPTION NOT HANDLED problems are most often caused by third-party software suites running into conflicts with the operating system’s kernel.
Security solutions from McAfee are frequently blamed for igniting this schism.
However, if you’re running a third-party antivirus, we recommend disabling ‘early launch anti-malware protection’ when you boot up. if the error code is still present.
It’s clear that your AV is causing the conflict when the KMODE EXCEPTION NOT HANDLED error no longer occurs after you disable the early launch anti-malware protection. In this case, the only solution is to get rid of the 3rd party AV and replace it with a non-conflicting 3rd party equivalent or just revert to Windows Defender.
If the kernel conflict is confirmed, follow the procedures below to disable the early start anti-malware protection and then uninstall your 3rd party suite.
To access the Settings app, press Windows key + I.
From the left-hand vertical menu of the Settings app, select System.
The System menu can be accessed.
In the System menu, select Recovery from the drop-down menu at the bottom of the page.
Restoring the previous state of affairs
Click the Restart now button linked with Advanced Startup in the dedicated Recovery menu to restart immediately into the Advanced Startup menu.
Take a look at the Advanced Startup options.
Afterwards, your PC will restart directly into the Advanced starting menu.
In the Advanced Startup menu, select Troubleshoot from the drop-down menu.
Start by clicking on the Troubleshooting tab.
Inside the Troubleshoot menu, click on Startup Settings from the list of options, then hit the Restart button to force your PC to boot into the Startup settings window.
The startup settings window will appear when you boot up.
Disable early-launch anti-malware protection by pressing either the 8 key or the F8 key (on your keyboard) as your computer boots up into the Startup Settings menu.
Disable the Anti-Malware System
After you have done this, your Windows 11 installation will begin with the anti-malware protection disabled at the beginning of the process.
If the KMODE EXCEPTION NOT HANDLED issue still occurs after your computer has restarted, try using it normally.
A conflict with your third-party antivirus may be to blame if the error isn’t appearing, in which case you should follow the next steps to fix it.
Windows 11 Kmode Exception Not Handled Error
Step 1: Open the Run dialogue box by pressing Windows key + R. Appwiz.cpl can be entered into the Programs & Features menu by typing ‘appwiz’ and pressing Enter.
Step 2: The Programs and Features menu can be opened.
Step 3: Make sure to allow admin access if requested by the User Account Control dialogue.
Step 4: You’ll need to find the third-party antivirus suite that’s creating the issue in the list of installed apps in the Programs and Features window.
Step 5: Right-click on the culprit and select Uninstall from the context menu.
Step 6: Remove the antivirus that is interfering.
Step 7: Reboot your computer and see if the problem has been fixed by following the remaining uninstallation windows and rebooting without the early launch anti-malware protection.
In Order to Get Rid of the KMODE EXCEPTION NOT HANDLED Problem, Follow the Next Technique Below
Remove Esportal by deleting the EspoDRIVER.sys driver from your computer (if applicable)
A system file (EspoDRIVER.sys) related to the e-sports platform Esportal is likely to be the cause of these unexpected crashes with the KMODE EXCEPTION NOT HANDLED issue in Counter Strike Global Offensive.
Dozens of CS:GO players have already made the switch to Windows 11 as a symptom of this disagreement.
If this is the case, the only way to fix the problem is to delete the offending system file and uninstall the parent programme (Esportal).
For further advice on how to cope with this particular Windows 11 issue, see the following
Open the Run dialogue box by pressing Windows key + R. You may now access the Programs and Features menu on Windows 11 by typing in ‘appwiz.cpl’ in the text field and pressing Enter.
The Programs and Features menu can be opened.
When the User Account Control asks if you want to provide admin access, click Yes.
In the Apps and Features menu, locate the Esportal entry by scrolling down through the list of installed programmes.
Esportal can be uninstalled by right-clicking on it and selecting Uninstall from the context menu that appears.
Removing the Esportal software is a simple matter to do.
To remove Esportal completely, follow the on-screen instructions.
We may safely remove the EspoDRIVER.sys driver now that Esportal has been removed and no longer requires it. This may be accomplished by simply going to the following directory and selecting Delete File… from the context menu:
C:\WINDOWS\System32\drivers\
EspoDriver.sys
Restart your computer one last time before checking for the KMODE EXCEPTION NOT HANDLED error.
Whether the problem persists, see if the approach after that can help you.
Install the most recent version of BIOS.
The KMODE EXCEPTION NOT HANDLED issue can also be caused by a kernel mode crash of one of the critical driver fleets. Pre-release versions of Windows 11 are not unusual in this regard.
To their credit, the majority of the major motherboard manufacturers have already provided updates to address this issue. Update your BIOS to take advantage of them; otherwise, you’ll miss out.
Install the most recent version of BIOS software.
It is possible to provide a sequence of generic actions that will serve as a broad guidance.
However, before you do anything further, make sure you’ve read through the motherboard’s official literature on how to perform a BIOS update. This list of resources may be of assistance:
Here’s a General Approach for Changing Your BIOS Version
Step 1: To begin, make sure you have a brand new, empty USB flash drive handy.
Step 2: If it’s already filled with data, make a backup first, then pick Format from the context menu that appears when you right-click on it.
The Process of Reformatting the Hard Drive
Make sure you select FAT32 as the file system in the Format screen, then click on Quick Format and push Start to begin formatting the drive,
Setting up the External Storage Device
Visit your motherboard manufacturer’s website and look through their official BIOS update documentation once formatting is complete.
Installing the Most Recent Version of BIOS
Restart your PC and press the Setup key to access the BIOS Settings menu once you’ve successfully copied the BIOS files to the USB flash drive.
Getting to the Installation Screen
Look for an option similar to Update System BIOS in the Advanced (Expert) settings of the BIOS (or similar).
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Conclusion
Changing the BIOS firmware on the system Make sure you follow the instructions for the BIOS update, then restart your PC and see whether the error has been repaired.
