How to fix an Unexpected kernel mode trap | UNEXPECTED KERNEL MODE TRAP BSOD Error in Windows 10

Windows 10 error message “UNEXPECTED KERNEL MODE TRAP” is a bug check indicating the CPU generated a trap and the kernel failed to catch the trap. The 0x0000007F blue screen typically occurs after the system changes, like the Windows 10 Creators Update or Windows 10 Fall Creators update 1709.

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    f you’re in the middle of your work, suddenly your Windows 10 computer turns into a blue screen, and shows you UNEXPECTED_KERNEL_MODE_TRAP error, you would be very annoyed and frustrated. But don’t panic, you won’t be stuck with it forever.  You CAN fix it with this guide. Read on to find how…

    Try these fixes:

    Here are 4 fixes you can fix this problem, ordered by likely effectiveness. You may not need to try them all.; just work your way down the list until you find the one that works for you.

    1. Update all your available drivers
    2. Run Memory Diagnostics
    3. Run System File Checker
    4. Check for Windows Update

    You’ll need to log into Windows 10 on your affected computer to try the following fixes. If you’re having trouble restarting your computer, boot it into Safe Mode and then try the following fixes.

    Fix 1: Update all your available drivers

    Most of the time,  the UNEXPECTED_KERNEL_MODE_TRAP error is caused by incompatible, faulty or outdated drivers. So you should update your available device drivers to see if it fixes your problem. 

    Whether you choose to update the device drivers manually, using Windows Update, or you use a trusted third party product, it’s essential that you have the latest correct device drivers for your operating system at all times.

    If you’re not comfortable playing with device drivers, we recommend using Driver Easy. It’s a tool that detects, downloads and (if you go Pro) installs any driver updates your computer needs.

    To update your drivers with Driver Easy, just click the Scan Now button, then when it lists the drivers you need to update, click Update. The correct drivers will be downloaded, and you can install them – either manually through Windows or all automatically with Driver Easy Pro.

    Fix 2: Run Memory Diagnostics

    Memory corruption can also cause such blue screen error. You can run memory diagnostics to fix it.

    1. On your keyboard, press the Windows logo key + together to invoke the Run box.
    2. Type mdsched.exe and press Enter.
    3. Click Restart now and check for problems(recommended).
    4. Now Windows will check the memory automatically. Wait till the testing 100% completes.

    After the testing, Windows will restart automatically.

    Fix 3: Run System File Checker

    The missing or corrupted system file can always cause blue screen error. Run System File Checker to scan and repair the missing or corrupted system files when UNEXPECTED_KERNEL_MODE_TRAP appears.

    1. On your keyboard, press the Windows logo key + X  together to open the quick-access menu.
    2. Click Command Prompt (Admin).
    3. Click Yes when prompted by User Account Control.
    4. Type sfc /scannow in the open command prompt window and press Enter. Wait till verification 100% complete.

    Fix 4: Check for Windows Update

    Either hardware or software issues can lead to blue screen error. And Windows updates can address security flaws and bugs related to both hardware and software. So make sure you’ve install all the new Windows 10 updates to keep your Windows 10 healthy, stable and away from blue screen error.

    Here’s how you can check for Windows Update

    1. Type Windows Update in the box. Click Check for updates on the top result.
    2. Click Check for updates on the right pane of poping-up window.

    Go on to follow the on-screen instructions to install the updates.

    That’s all there is to it..

    How to Fix UNEXPECTED KERNEL MODE TRAP in Windows 10

    UNEXPECTED_KERNEL_MODE_TRAP (error code 0x0000007F) is one of the Windows 10 errors that often show Blue Screen of Death (BSoD) and cause PC crashes and freezes. Windows 10 error message “UNEXPECTED KERNEL MODE TRAP” is a bug check indicating the CPU generated a trap and the kernel failed to catch the trap. The 0x0000007F blue screen typically occurs after the system changes, like the Windows 10 Creators Update or Windows 10 Fall Creators update 1709.


    The UNEXPECTED KERNEL MODE TRAP blue screen error can be caused by many factors: component connectors covered in dust, faulty installed hardware or software, malware or virus, damaged system files, driver issues, etc. And these can also result in many other Windows 10 blue screen errors, like DRIVER_IRQL_NOT_LESS_OR_EQUAL (error 0x000000D1), INACCESSIBLE_BOOT_DEVICE error, Windows 10 VIDEO DXGKRNL FATAL ERROR, Driver Power State Failure, Internal Power error, etc.

    It is necessary to fix UNEXPECTED KERNEL MODE TRAP after the Windows 10 upgrade or the Windows 10 anniversary update, and here are solutions for it.

    Top 7 Methods to Fix UNEXPECTED KERNEL MODE TRAP Blue Screen Error in Windows 10

    Below are top 6 solutions to fix the UNEXPECTED_KERNEL_MODE_TRAP (error 0x0000007F) in Windows 10.

    1. Conduct a Cleanup on Dusty Components

    Shut down and disconnect the devices from the PC, and then check if the PCI components are covered in dust. If so, clean up the dust and reconnect them to the computer to see if the UNEXPECTED KERNEL MODE TRAP or error 0x0000007F recurs.

    2. Check Newly Installed Hardware or Software

    If you’ve added any hardware that causes the boot failure, remove it to fix Windows 10 UNEXPECTED KERNEL MODE TRAP. Also, make sure all the hardware is compatible with Windows 10. UNEXPECTED KERNEL MODE TRAP often appears on a PC that the BIOS, network cards, hard disk controllers, etc. are incompatible with the OS. To keep them up-to-date, you can find available updates on the hardware manufacturer’s websites.

    Read More:=How to add a textbox in google docs in 2021

    If you are able to enter the Windows, do remember to check the software. It may be the software you’ve installed recently that causes the UNEXPECTED KERNEL MODE TRAP error, and you can perform a Windows 10 clean boot to resolve the issue.

    Read More: What is windows host process rundll32

    3. Scan and Clean up Malware on the PC

    UNEXPECTED KERNEL MODE TRAP blue screen can be caused by malware or virus infected files. So launch the malware protection program to take a scan on your PC and delete the malicious files.

    4. Use System File Checker to Fix UNEXPECTED KERNEL MODE TRAP

    Corrupted system files can also result in Windows 10 UNEXPECTED KERNEL MODE TRAP error, but you can use Windows System File Checker to scan for and repair damaged files.

    1. Use Windows shortcut keysWin + X to launch the Jump List.

    2. Select Command Prompt (Admin).

    3. Type sfc /scannow into the dialog window and hit Enter.

    The command will make the System File Checker to scan for corrupted system files that cause 0x0000007F blue screen.

    5. Update the Drivers and Fix Windows 10 UNEXPECTED KERNEL MODE TRAP

    Outdated or broken drivers will affect the communication between the system and the hardware, causing problems including UNEXPECTED_KERNEL_MODE_TRAP blue screen, mouse and keyboard not working, graphics error 43, unidentified network, etc. You can fix driver issues manually or use professional driver update utilities like Driver Talent, Driver Doctor, Driver Navigator, etc.

    Here’s how to one-click update drivers with Driver Talent to fix the 0x0000007F blue screen.

    Step 1. Scan the PC for outdated, missing or corrupted drivers.


    Step 2. Click Update to download and install proper drivers.

    Step 3. Restart the PC to make the newly installed drivers take effect.

    Note: You may not be allowed to manually install drivers after the Windows 10 anniversary update (version 1607). For more information, see Fix: Driver Signature Issue in Windows 10 Anniversary.

    6. Install Latest Windows Update

    You could also try to install the latest Windows 10 update to fix the unexpected kernel mode trap BSOD error. Do the following steps:

    Step 1. Click the Start button and then click Settings.

    Step 2. Click Update & Security.

    Step 3. On the right, click Check for updates

    The system will automatically install the latest Windows update available.

    7. Restore your computer

    When you try all the ways above, you problem still exist. Now you need to restore your computer instantly. The detailed description will show in How to Use System Restore to Fix Windows 10 Issues.

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    Although many users have switched to Windows 10, it doesn’t mean that these users aren’t experiencing issues on Windows 10.

    One of the issues that users are experiencing on Windows 10 is UNEXPECTED_KERNEL_MODE_TRAP error so let’s see if we can fix this issue.

    This is a Blue Screen of Death error that is caused by hardware failure or by the incompatible driver. If you didn’t have any of these issues on previous versions of Windows, then the issue is probably the incompatible driver.

    In some cases, this error can be caused if your component connectors are covered in dust, so you’ll need to remove them and clean them properly before connecting them again.

    If your PC is under warranty or you don’t know how to fix it, it’s best to hire an expert to do the job for you.

    But if this issue started appearing after you’ve switched to Windows 10, it’s most likely a driver issue, so let’s see how to fix it.

    UNEXPECTED_KERNEL_MODE_TRAP can be an annoying error, and users reported the following issues as well:

    • Unexpected Kernel Mode Trap wdf01000.sys, win32kfull.sys, usbxhci.sys, nvlddmkm.sys, ntfs.sys, ndu.sys, netio.sys – In most cases, this error comes followed by the name of the file that is causing it. The most common cause is a certain driver or third-party software.
    • Unexpected Kernel Mode Trap overclock – This error can also appear when overclocking your PC. To fix it, it’s advised to remove all overclock settings.
    • Unexpected Kernel Mode Trap ESET Smart Security, AVG, Avast, McAfee – According to users, this error can be caused by your security software. Many users reported this issue while using AVG, Avast, and McAfee.
    • Unexpected Kernel Mode Trap RAM – Hardware issues can also cause this problem to appear. In most cases, the cause for this error is your RAM.
    • Unexpected Kernel Mode Trap after Windows update – In several cases, users reported this problem after a Windows update. To fix this problem, you’ll need to uninstall the problematic update.
    • Virtualbox Unexpected Kernel Mode Trap – This issue can appear on your PC, but it can also appear while using virtualization software. Users reported this issue on both Virtualbox and VMWare.
    • Unexpected Kernel Mode Trap BSOD – This error is always followed by a Blue Screen of Death and a restart. Even though this is an annoying problem, you should be able to fix it with our solutions.

    1. Use a repair tool

    When the UNEXPECTED_KERNEL_MODE_TRAP error occurs in Windows 10, the best solution is to use a specialized repair tool.

    Restoro is powered by an online database that features the latest functional system files for Windows 10 PCs, allowing you to easily replace any elements that can cause a BSoD error.

    This software can also help you by creating a restore point before starting the repairs, enabling you to easily restore the previous version of your system if something goes wrong.

    This is how you can fix registry errors using Restoro:

    1. Download and install Restoro.
    2. Launch the application.
    3. Wait for the software to identify stability issues and possible corrupted files.
    4. Press Start Repair.
    5. Restart your PC for all the changes to take effect.

    As soon as the fixing process is completed, your PC should work without problems, and you will not have to worry about BSoD errors or slow response times ever again.

    Disclaimer: This program needs to be upgraded from the free version in order to perform some specific actions.

    2. Run the BSOD Troubleshooter

    The Windows 10‘s own troubleshooting tool can be used for dealing with various system problems, including BSOD issues. So, it might help with the UNEXPECTED_KERNEL_MODE_TRAP issue, as well.

    3. Remove the problematic driver

    1. Go to the Start Menu, and click the Restart button while holding Shift on your keyboard.
    2. In Advanced Startup select Troubleshoot.
    3. Go to Advanced Options, and choose Startup Settings.
    4. You should see an option to enter Safe Mode.
    5. When you enter Safe Mode, go to Device Manager.
    6. Locate the problematic driver, right click and choose Uninstall.

    This issue can be caused by all sorts of drivers, but some users claim to uninstall your Bluetooth, Wireless, & Intel RST(Intel Rapid Storage Technology).

    We have to warn you that this issue can be caused by another driver, it doesn’t have to be related to Bluetooth or Wireless drivers, but they are often the main causes of this issue.

    Searching for drivers on your own can be time-consuming. So, we advise you to use a tool that will do this for you automatically.

    Using an automatic driver updater will certainly save you from the hassle of searching for drivers manually, and it will always keep your system up to date with the latest drivers.

    A professional tool will help you update drivers automatically and prevent PC damage caused by installing the wrong driver versions.

    4. Run a SFC scan

    1. Right-click the Start Menu button, and open Command Prompt (Admin).
    2. Enter the following line, and press Enter:sfc/scannow
    3. Wait until the process is done (it may take a while).
    4. If the solution is found, it will automatically be applied.
    5. Now, close the Command Prompt and restart your PC.

    The SFC scan is another troubleshooter we’re going to try here. This is a command-line tool that scans your system for potentially broken files and repairs them (if possible).

    Repairing corrupt system files can resolve BSOD issues like the UNEXPECTED_KERNEL_MODE_TRAP error. So, running the SFC scan is definitely worth trying.

    5. Run DISM

    • Standard way
    1. Right-click Start and open Command Prompt (Admin).
    2. Paste the following command and press Enter:DISM /Online /Cleanup-Image /RestoreHealth
    3. Wait until the scan is finished.
    4. Restart your computer and try updating again.
    • With the Windows installation media
    1. Insert your Windows installation media.
    2. Right-click the Start menu, and choose Command Prompt (Admin).
    3. In the command line, type the following commands and press Enter after each:dism /online /cleanup-image /scanhealthdism /online /cleanup-image /restorehealth
    4. Now, type the following command and press Enter:DISM /Online /Cleanup-Image /RestoreHealth/source:WIM:X:SourcesInstall.wim:1 /LimitAccess
    5. Make sure to change an X value with the letter of the mounted drive with Windows 10 installation.
    6. After the procedure is finished, restart your PC.

    Deployment Image Servicing and Management (DISM) is a tool that re-deploys the system image all over again. This can resolve various issues, including BSOD errors.

    6. Disable uninstall your security software

    Sometimes third-party antivirus software can cause this problem to appear. Your antivirus can interfere with your Windows installation, and in order to fix the problem, you need to disable your antivirus.

    If disabling the antivirus doesn’t fix the issue, you might have to uninstall it. To completely remove your antivirus, it’s recommended to download a dedicated removal tool for it from the developer’s website.

    If removing the antivirus fixes the issue, you can reinstall your antivirus or switch to a different antivirus solution. You can also use Windows Defender instead of a third-party antivirus.

    Several users reported that Avast was the problem on their PC, but keep in mind that almost any antivirus software can cause this problem to appear.

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