The KMODE_EXCEPTION_NOT_HANDLED error is one of the common blue screen of death errors which is usually caused by a corrupt or defective driver. In some cases, users can also experience recurring boot loop. Simply put, the Kmode Exception Not Handled error is the result of memory-related conflicts between two or more applications.
So, read on to find out how to fix this error once and for all.
- 1 1. Perform a clean boot and disable fast startup
- 2 2. Make sure your network drivers are up to date
- 3 3. Diagnose memory problems
- 4 4. Disable the antivirus app
- 5 5. Remove external devices
- 6 6. Empty storage space
- 7 7. Update BIOS and Settings
- 8 Kmode Exception Not Handled . error resolved
1. Perform a clean boot and disable fast startup
By default, fast startup is enabled in almost all Windows 10 devices. The feature allows your computer to boot up faster or recover quickly from hibernation, but it can also cause Windows 10 to not start properly or reload with some of the previous errors.
The first thing users should do is disable fast startup, followed by a clean boot:
Disable fast startup
- Right-click on the Start button and click on Power Options.
- In the window that opens, click Additional power settings.
- In the menu on the left side, click Choose what the power buttons do.
- Go to power off settings and uncheck the checkbox next to Quick Start.
- You can save changes and exit.
How to perform a clean boot of Windows 10
A clean boot starts Windows with a small set of applications and drivers, so you can determine if a background application is interfering with system files. This is similar to starting Windows in Safe Mode, but gives you more control over which services and applications start at boot up to help you isolate the cause of the problem.
A clean boot disables all third-party applications in Windows. It is used to diagnose a lot of common problems encountered by Windows users.
- In the Start menu search bar, type msconfig and select System Configuration in search results.
- Go to the tab Services in the window that is displayed.
- check the box Hide all Microsoft services.
- Check all services and click disable all.
- Now, open the task manager and go to the tab startup.
- Select all the services one by one and click the button disable at the bottom right.
Now it’s time to restart your computer and check if the error still appears. If the error is resolved, then the blue screen of death error was caused by interference from a third-party app.
2. Make sure your network drivers are up to date
A common cause of BSoD error is outdated network drivers. Here’s how to update your device’s network drivers:
- press the . key
Windows + RAnd type devmgmt.msc. The Device Manager window will open.
- Find and expand Network Adapters using the dropdown arrow.
- Right click Ethernet and wireless drivers and select Driver Update.
- Next, tap Automatically search for updated driver software.
Then, Windows will automatically download and install the required network drivers. Users can also find more detailed information on how to find and replace outdated Windows drivers.
3. Diagnose memory problems
As mentioned in the introduction, the error is usually the result of memory issues in your computer. Fortunately, Windows has a built-in utility that can help solve a wide range of memory-related issues. To use it, just follow these steps:
- In the Start menu search bar, type Windows Memory Diagnostic and select the best match.
- Users can either immediately restart the computer and start the diagnostic process, or do so the next time the computer restarts.
It is recommended that the user choose the first option and restart his computer.
4. Disable the antivirus app
Antivirus applications are notorious for deleting or quarantining essential system files. This can also happen when installing new drivers or updating existing ones. That is why it is recommended that the user temporarily disable the antivirus application they are using when installing new applications (which are downloaded from a trusted website) or drivers.
To disable the antivirus app, find its icon near the notification bar on the right side of the taskbar. Right click on it and click disable. The process may differ for different antivirus suite, so check the user manual to learn how to do the same.
Sometimes, Windows built-in security may also falsely flag safe applications and files. To disable Windows security, follow these steps:
- write Windows Security In the start menu search bar and click on the first result.
- In Control Panel, click Protection from viruses and dangers.
- Click Manage Settings and then Turn Off Real-time Protection.
Please note that this is a pause switch. Once the app or driver has finished installing, launch the antivirus app again.
5. Remove external devices
When turning on the computer, be sure to disconnect all external devices. This includes keyboard, mouse, storage devices, and video game controllers. Check that there are no obstructions during boot or the error reappears after booting.
If the computer is running smoothly, it means that the drivers related to these external devices were not installed correctly.
6. Empty storage space
The Kmode Exception Not Handled error may be caused by a full hard drive.
Microsoft recommends users to leave plenty of space in C: drive because it contains system files. A full C: drive can cause a large number of problems, especially when downloading and installing a Windows update.
Delete any unwanted or unused files, remove old applications, and install video games in other partitions. It may not be a bad idea to use cloud storage to store your files if you frequently run out of space. Alternatively, or you can upgrade your existing storage for a larger drive. Check out the best ways to free up hard drive storage space on Windows 10.
7. Update BIOS and Settings
Rarely, Kmode Exception Not Handled error occurs due to outdated BIOS. To update your BIOS, go to your motherboard manufacturer’s website and go to the Downloads section. Select the appropriate motherboard, then download and install the latest BIOS version.
Alternatively, check out our guide on how to update your UEFI BIOS in Windows.
If your BIOS has options to enable or disable caching and shadowing, make sure both options are disabled. Newer systems do not have these settings, but it is important to exclude them.
Kmode Exception Not Handled . error resolved
The above techniques will resolve the kmode_exception_not_handled blue screen of death issue. But if things get worse, and the error is not resolved, your final backup options are to reset Windows 10. So check out 4 ways to reset Windows 10 to factory mode.