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Get the fix to the 0x0000007F: UNEXPECTED KERNEL MODE TRAP error message affecting Windows XP, Windows Vista, Windows 7, Windows 8, Windows 8.1 and Windows 10.


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  • 1 About the “0x0000007F” error
    • 1.1 Description and Symptoms
    • 1.2 Causes of this Error
  • 2 Fixing “0x0000007F” on Windows
  • 3 More Information

About the “0x0000007F” error

The following information on this error has been compiled by NeoSmart Technologies, based on the information gathered and reported by our global network of engineers, developers, and technicians or partner organizations.

Repair Unexpected Kernel Mode Trap

Description and Symptoms

The error messages, alerts, warnings, and symptoms below are tied to this error.

Symptom 1: 0x0000007F error screen

The error is usually triggered by two situations that occur in the kernel mode: either the CPU generated a condition that the kernel is not allowed to catch or the condition is an unrecoverable error.

The most common cause is hardware failure, mostly due to faulty or mismatched memory. There can be cases when faulty software currently installed on your computer can also make this error appear.

On computers with Windows 8 the error code is replaced with UNEXPECTED _KERNEL_MODE_TRAP:

Causes of this Error

This error has been known to occur as a result of one or more of the following:

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Cause 1: Faulty RAM module

The most common cause of this error is a faulty RAM module that periodically gives read/write errors. If that’s the case, then it is advisable to scan the system memory and replace the faulty RAM module.

Cause 2: Corrupt or outdated device drivers

Sometimes the device drivers may become misconfigured, corrupt or outdated. That may also happen after a Windows update or a Windows downgrade from a newer system to an older one.

Fixing “0x0000007F” on Windows

Fix #1: Check new hardware

If the error occurs after a recent hardware installation, it’s most likely that the error is caused by that specific hardware piece.

In order to fix the error, simply remove the new hardware and restart your computer.

If the error was caused after you’ve installed the driver of the new hardware, go to Fix #3.

Fix #2: Test RAM memory

The error can be triggered by faulty or mismatched memory.

If 0x0000007F occurs immediately after you’ve plugged-in a new RAM memory, shut down your computer, remove it and then restart your computer and check if the error was fixed.

If the error is caused by a faulty RAM memory, check your RAM using the Windows Memory Diagnostic Tool.

To do so, follow these steps:

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  1. Click Start
  2. Type in Memory Diagnostics Tool in the search box
  3. Right-click on Memory Diagnostics Tool
  4. Choose Run as Administrator
  5. Follow the instructions to begin the diagnostic process

If Windows Memory Diagnostic isn’t returning any results, you can also use Easy Recovery Essentials’ Automated Repair feature that can check your RAM, HDD and CPU in a single process:

  1. Burn the ISO Image. Follow our instructions on how to burn a bootable ISO image. If you’d like to have a recovery USB instead, follow our instructions on how to make a recovery USB.
  2. Boot into Easy Recovery Essentials
  3. Select Automated Repair
  4. Click Continue and wait for the Automated Repair process to finish. Automated Repair process will report any issues found with your hard disk or RAM memory:

To download Easy Recovery Essentials, click here.

Fix #3: Update or disable drivers

To check if the error is caused by a faulty drive, run an automatic driver update or manually update the drivers to the latest available versions.

To manually update a driver, follow these steps:

  1. Click Start
  2. Type in devmgmt.msc in the search box
  3. Click devmgmt from results list
  4. Right-click on the driver
  5. To update the driver, select Update Driver Software.
  6. To disable the driver, select Disable.
  7. To uninstall the driver, select Uninstall.

Device Manager screen

To run an automatic driver update, follow these steps:

  1. Click Start
  2. Go to Devices and Printers
  3. Right-click on your computer
  4. Select Device Installation Settings
  5. Select Yes, do this automatically
  6. Click Save Changes
  7. Follow the necessary steps to continue the process

Fix #4: Disable memory caching from BIOS

Follow these steps to open your BIOS menu and disable Cache Memory to test if the 0x0000007F appears afterwards:

  1. Restart your computer
  2. Press F2 or Del key enter BIOS Setup

    Notice the key guide in the top-right corner.

  3. Go to the Advanced menu
  4. Select Cache Memory
  5. Make sure it’s Disabled
  6. Press F10 to Save & Exit
  7. Choose Yes

More Information

Support Links

  • Easy Recovery Essentials for Windows – our repair and recovery disk.
    It’s an easy-to-use and automated diagnostics disk. It’s available for Windows 8, Windows 7 and Windows Vista. It’s also available for Windows XP and Windows Server.

    Read more at Windows Recovery Disks.

  • The NeoSmart Support Forums, member-to-member technical support and troubleshooting.
  • Get a discounted price on replacement setup and installation discs: Windows XP, Windows Vista, Windows 7, Windows 8, Windows 10.

Applicable Systems

This Windows-related knowledgebase article applies to the following operating systems:

  • Windows XP (all editions)
  • Windows Vista (all editions)
  • Windows 7 (all editions)
  • Windows 8 (all editions)
  • Windows 8.1 (all editions)
  • Windows 10 (all editions)

Last Updated on by

If you have ever faced the Unexpected Kernel Mode Trap Windows 10, you already know that it can cause PC crashes. Also, PC freezing is common when it comes to this error.

The reasons behind it might be malware virus, damaged system files, problematic drivers, and even dusty components.

No matter what’s the reason, you need a solution. And we have come up with some solutions for this error. Check them out if you want to resolve it.

Methods of Resolving Unexpected Kernel Mode Trap Error

Method 1: Driver Removal

When you see the unexpected Kernel Mode trap in your Windows 10, you can guess that your PC’s problematic driver is doing this.

In this case, you have to remove the driver that is causing the problem. There is no theory on which driver will be the reason for this unexpected error.

However, the users of Windows 10 usually support uninstalling the Wireless, Bluetooth, and Intel Rapid Storage Technology named RST to solve this problem.

But we cannot tell you exactly which driver is causing this problem in your Windows. The problem might not be connected with Wireless drivers of the Bluetooth ones.

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But in most cases, users have faced the problem regarding these two drivers.

Let us know how to remove the problematic driver so that you can solve it.

  • First of all, you have to go to Advanced Setup. Enter it in your Windows. For this, you have to click on the Start Menu on the lower-left part of the desktop.

After clicking, you will see several options. There, you have to click the Restart button.

But you cannot click this button alone. You have to click the restart button along with the Shift button. Press both of them together.

  • If you do not have Windows 10, you might not be able to use the Restart button and Shift for this process.

It won’t work. In this case, you have to restart the WIndows for a few times. After some restarts, you will see an Advanced Startup option.

  • After you see the Advanced Startup, you will see an option called Troubleshoot.

You have to select it, and then you have to click on Advanced Options. After this, you have to select Startup Settings.

  • After this, you will find an option called Safe Mode. Click it to enter.
  • In Safe Mode, you have to locate the Device Manager. Go for it.
  • When you enter the Device Manager, you will see the problematic driver. All you have to do is go through it and uninstall it by clicking the Uninstall option.

Method 2: Drivers Update

Now that you are done with the uninstallation, you have to move to update the drivers. But if you want to update drivers, you have to search for it.

In this case, it can be a lengthy process. So, it is always better to use a tool that can help you in the process of updating the drivers.

Try to use a driver updater that can automatically do your work. We will recommend you using Tweakbit’s Driver Updater for this purpose.

  • First of all, you have to install it. When you install it, the program will start running on your PC.
  • It will scan all the outdated drivers. You don’t need to do anything as it will do its work by itself. It will make a comparison between the installed drivers and the latest drivers available.
  • Wait for some time. After the scan is done, the program will tell you about the problematic drivers on your PC.
  • All you have to do is review the driver and then, you can update the drivers one by one. You can also settle for updating them altogether. After you update, things will be fine!

Windows 7/8/10: How to Fix UNEXPECTED KERNEL MODE TRAP

Method 3: SFC Scan

You can also use the troubleshooter named SFC scan for the Unexpected Kernel Mode Trap Windows. If you have any broken files in your system, this will help you scan them. This command-line tool will repair the corrupt system files. Try this one as it is worth trying!

  • First, go to the Start Menu on the bottom part of the screen.
  • After this, you have to look for the Command Prompt. Here, make sure you are the Admin.
  • Then, you have to write the line written below in the picture. All you have to do now is press enter to make it work.
  • It is time to wait for the system to work. It will take some time. After it is done, the program will run the solution that it has found. It will work for applying the solution on its own.
  • After you are done, you have to close the Command Prompt. And for saving the changes, restart your PC.

Note: In some cases, the SFC scan might not find the solution. If it doesn’t, this process will not work for this error.

Method 4: RAM Checking

One of the most common issues for this error is faulty RAM. All you have to do is test the RAM for finding the problem.

  1. Remove all the modules from the PC first and keep one inside.
  2. And then, check if the problem still occurs or not.
  3. Check all the modules in this process. Repair or change the faulty RAM, and you are done!

Method 5: Windows Updating

You can also solve the Unexpected Kernel Mode Trap ryzen by updating the PC. All you need to do is install the new updates and run your Windows.

  • First of all, go to the Settings app of your PC. For this, you have to press the Windows Key along with the letter “i.” The settings app will appear before you.
  • Now, you have to go for the option Update & Security. Click it first.
  • All you have to do now is to click the Check for Updates button.
  • When your updating and installation is done, we hope the problem will be solved!

You might be interested on Windows Update Stuck at 100.

Bsod Unexpected Kernel Mode Trap Windows 10

Method 6: Overclock Settings Removal

If you see that Unexpected Kernel Mode Trap Overclock in your Windows 10, you have to understand that this is overclocking the PC.

In this case, you have to get rid of all the overclock settings one by one. Removing all these settings can help you get out of this problem. Don’t forget to read preparing to configure Windows stuck.

Method 7: Dusty Components Cleaning

Before you go through all the methods mentioned above, you have to perform this one.

  1. For cleaning the dusty components, you have to shut down your PC first.
  2. Then, disconnect all the devices added to the PC. After this, you have to check the PCI components.
  3. If there are dirt and dust on this, you have to clean it up. Once you are done cleaning, you have to reconnect the PC and check it.

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Note: If this doesn’t solve it, you can scan your PC for resolving the error.

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Wrap Up

Now that you know how to deal with the Unexpected Kernel Mode Trap Windows 10, you can do it at home without any computer expert. Try the methods we have mentioned here.

There are more ways to get rid of this error. Let us know in this comment box about which method you follow and how it works.