Solution to the UNEXPECTED_KERNEL_MODE_TRAP error in Windows

Last update: 12/04/2025

  • The UNEXPECTED_KERNEL_MODE_TRAP error can be caused by hardware, driver, or software failures.
  • Identifying the file or code involved helps locate the exact cause of the failure.
  • Windows includes tools like SFC, DISM, and the BSOD troubleshooter that can fix the problem.
  • Faulty RAM or improperly configured overclocking are common and easy-to-solve causes.
Solution to the UNEXPECTED_KERNEL_MODE_TRAP error in Windows

We bring you the Solution to the UNEXPECTED_KERNEL_MODE_TRAP error in Windows. This error is one of those problems that can catch any user off guard. It usually presents itself as a blue screen (also known as a BSOD), and although it may seem complicated to resolve, it actually has several identifiable causes and quite effective solutions if the right steps are followed.

The purpose of this article is to explain to you why this error occurs, what the different scenarios are in which it can appear, and how you can resolve it yourself. You don't need to be an expert, but you do need to carefully follow the recommendations. Let's get to it.

What does the UNEXPECTED_KERNEL_MODE_TRAP error mean?

Solution to the UNEXPECTED_KERNEL_MODE_TRAP error in Windows

This failure, which is technically identified with the code 0x0000007F, indicates that The computer's processor generated an exception that the operating system could not handle correctlyIn simple terms, the system kernel, which is an essential part of the Windows core, has received an unexpected signal that it doesn't know how to handle, and so the system panics and displays a blue screen to prevent further damage.

Main causes of the UNEXPECTED_KERNEL_MODE_TRAP error

This error can have a variety of causes, ranging from hardware issues to software conflicts. Below are the most common causes:

  • Faulty or incompatible drivers, especially after upgrades or new installations.
  • Faulty hardware, mainly RAM modules or poorly connected cables.
  • Corrupted system files.
  • overclocking, which can destabilize the system.
  • Antivirus or security software that conflicts with other system processes.
  • Errors after Windows updates that affect the core of the system.
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Types of errors related to UNEXPECTED_KERNEL_MODE_TRAP

Windows 11 25H2-1

This blue screen may be accompanied by references to certain system files or drivers, which helps identify what's failing. Some examples include:

  • wdf01000.sys, win32kfull.sys, usbxhci.sys, nvlddmkm.sys: indicate conflicts with system drivers, USB, graphics, etc.
  • ntfs.sys or netio.sys: related to the file system or network.
  • Errors caused by specific antiviruses such as ESET, McAfee or Avast, which can interfere with the kernel.
  • overclocking: Uncontrolled overclocking of the processor or GPU may cause this exception.

How to identify the source of the fault

One way to determine the exact cause of the error is to check the exception code that appears on the blue screen. For example:

  • 0 x 00000000: Division by zero error, common in CPU failures or corrupted drivers.
  • 0 x 00000004: Overflow, when there is an excess of information in the processor registers.
  • 0 x 00000006: Invalid opcode, indicating possible memory corruption or poorly written software.
  • 0 x 00000008: Double error, caused by unresolved exception chains or serious hardware failures.

10 Effective Solutions to Fix UNEXPECTED_KERNEL_MODE_TRAP Error

Error code 43 on Windows-0

1. Boot into Safe Mode and remove problematic drivers

One of the first solutions you can apply is to start in Safe Mode and uninstall any drivers that may be causing the error:

  1. Restart your computer and hold down the key Shift while clicking “Restart” from the start menu.
  2. Accede to Troubleshoot > Advanced options > Startup settings and activate Safe Mode.
  3. Open the Device administrator and removes suspicious drivers, especially those that have been recently installed.
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2. Update all system drivers

Once the conflicting driver is removed, you can use tools such as Outbyte Driver Updater or update manually from Device Manager to make sure that all hardware is using compatible and modern versions.

3. Run the Blue Screen of Death (BSOD) Troubleshooter

From Settings > Update & security > Troubleshoot, you can access the specific solver for BSOD errorsThis tool analyzes system configuration and automatically repairs kernel-related problems.

4. Use System File Checker (SFC)

The Command sfc /scannow It runs from the Command Prompt (as administrator) and repairs possible corruption in system files. It is useful if the failure is due to damaged system files.

5. Install all Windows updates

The Windows cumulative updates include patches for bugs like this. Make sure you have your system fully updated since Settings > Update & Security.

6. Check cables and hardware connections

Especially after a component upgrade, make sure that All RAM modules, hard drives and cards are properly connectedA simple bad contact can cause this error.

7. Check RAM

One of the most common sources of error is memory. You can use tools like Windows Memory Diagnostic to scan for errors. If you have multiple modules, try removing and testing them one by one.

8. Run the DISM command

The DISM tool allows you to perform a deeper repair of a Windows installation. Run the following command:

DISM /Online /Cleanup-Image /RestoreHealth

Do this from the command prompt in administrator mode and let it finish without interruption.

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9. Uninstall antivirus or security software

Some third-party antivirus or firewalls are incompatible with certain functions of the operating system. Try temporarily disabling or even uninstalling them to see if the error disappears. Sometimes, you may need to refer to other articles in the same area, such as Fix the BAD_POOL_HEADER error on Windows.

10. Reset Windows as a last resort

If none of the above solutions work, you can opt for reset the system to its factory state. To do this:

  • Restart your computer by holding Shift pressed and access to Reset this PC.
  • Select “Delete All” and follow the steps.

This process will erase all data on your main drive., so be sure to back up before proceeding.

Specific technical aspects of code 0x0000007F

WindowsPackageManagerServer.exe application error-6

This code indicates a trap not handled by the kernel. It may be due to errors such as:

  • stack overflow: when multiple drivers overlap.
  • Incompatible or defective hardware: especially faulty RAM or motherboards.
  • Problems with the BIOS or ACPI: Make sure your BIOS is up to date.

As we have seen, this error can have many possible sources in Windows But, in most cases, fixing it is within reach of any user with a little patience. From checking drivers and memory modules to running system diagnostic tools, there are multiple ways to restore stability to your computer. We're glad you left this article with the solution to the UNEXPECTED_KERNEL_MODE_TRAP error in Windows.

kernel-power error 41
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