by Olivia Morelli - -


Issue: How to fix UNEXPECTED_KERNEL_MODE_TRAP BSOD on Windows 10?

Cannot fix UNEXPECTED_KERNEL_MODE_TRAP BSOD for a couple of weeks. It shows up randomly, usually after system's restart. Please provide fixes that I could try. Thanks!

Solved Answer

UNEXPECTED_KERNEL_MODE_TRAP is a Windows 10 specific Blue Screen of Death (BSOD)[1] that is typically marked with an error code 0x0000007F. In some of the cases, it may be found as UNEXPECTED_KERNEL_MODE_TRAP_M, though both versions point out to the same problem – the failure of system's driver.

Although it may be triggered by hardware failure, driver's incompatibility is a more frequent trigger of a UNEXPECTED_KERNEL_MODE_TRAP error. The problem is that the error does not indicate the problematic driver, which is why we would recommend scanning the system with a powerful PC's optimization tool, such as Reimage to fix driver problems, registry errors, delete unwanted or malicious programs,[2] and other optimization-oriented tasks.


The UNEXPECTED_KERNEL_MODE_TRAP blue screen can denote the following system's files:

  • wdf01000.sys
  • win32kfull.sys
  • usbxhci.sys
  • nvlddmkm.sys
  • ntfs.sys
  • ndu.sys
  • netio.sys

If the error you are getting points out to one of the above-listed files, make a research on the file to identify the software that it is related to. This way, you will narrow down the problem.

If, however, the BSOD does not contain a reference to a file, try to disable your anti-virus, especially if you are using ESET Smart Security, AVG, Avast, McAfee. Based on people's reports, the UNEXPECTED KERNEL MODE TRAP may occur due to a conflict of the anti-virus.

If a scan and disabling anti-virus did not help to fix UNEXPECTED_KERNEL_MODE_TRAP BSOD, try these fixes:

Update device drivers

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If, for instance, the blue screen you get the point out to the nvlddmkm.sys file, it means that the problem is related to Hardware and Sound driver (typically Nvidia). Here's what you should do to update it:

  • Right-click on Windows key and select Device Manager.
  • Expand Display Adapters section.
  • Right-click on NVIDIA driver and select Update driver.
  • Select Search automatically for updated driver software and wait for the update process to be finished.

Update device drivers

Remove overclock settings

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If you get the UNEXPECTED_KERNEL_MODE_TRAP saying “overclocking has failed,” try to remove all overclocking[3] settings.

For this purpose, you will have to enter BIOS settings and change the overclocking frequency or set it to auto.

Change overclock settings

Uninstall Windows Update

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To repair damaged system, you have to purchase the licensed version of Reimage Reimage.

If the bug started occurring during system's restart after the installation of Windows updates, it might be that some of the update's components were corrupted during the installation process. Thus, you should remove the update and reinstall it.

  • Press Windows key + I to open Settings.
  • Open Update & Security section and click View installed update history.
  • Select Uninstall updates.
  • Once you get a list of installed updates, select the update that triggered UNEXPECTED_KERNEL_MODE_TRAP blue screen.
  • Right-click on it and select Uninstall.

Uninstall Windows updates

If that did not help, consider reinstalling the driver. For that, you should follow the guidelines given above, except that select Uninstall instead of Update. After that, re-open Device Manager and expand Actions tab. Select Scan for hardware changes. Alternatively, you can download the latest version of the driver from manufacturer's website. 

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Prevent websites, ISP, and other parties from tracking you

Private Internet Access is a VPN that can prevent your Internet Service Provider, the government, and third-parties from tracking your online and allow you to stay completely anonymous. The software provides dedicated servers for torrenting and streaming, ensuring optimal performance and not slowing you down. You can also bypass geo-restrictions and view such services as Netflix, BBC, Disney+, and other popular streaming services without limitations, regardless of where you are.

A VPN is also crucial when it comes to user privacy. Online trackers such as cookies can not only be used by social media platforms and other websites but also your Internet Service Provider and the government. Even if you apply the most secure settings via your web browser, you can still be tracked via apps that you are connected to the internet. Besides, privacy-focused browsers like Tor is are not an optimal choice due to diminished connection speed.

Therefore, to stay completely anonymous and prevent the ISP and the government from spying on you, you should employ Private Internet Access VPN. It will allow you to connect to the internet while being completely anonymous, prevent trackers, ads, as well as malicious content. Most importantly, you will prevent the illegal surveillance activities that NSA and other governmental institutions are performing behind your back.


Recover your lost files quickly

Unforeseen circumstances can happen at any time while using the computer: it can turn off due to a power cut, a Blue Screen of Death (BSoD) can occur, or random Windows updates can decide to reboot the machine when you went away for a few minutes. As a result, your schoolwork, important documents, and other data might be lost.

Additionally, you might also be attacked by malware that can corrupt your Windows or encrypt files with a robust encryption algorithm, and ask for a ransom in Bitcoin for the decryption tool. Cybercriminals might not deliver what they promised, however, so it is better to attempt alternative file recovery methods that could help you to retrieve at least some portion of the lost data.

Data recovery software is one of the options that could help you recover your files. Once you delete a file, it does not vanish into thin air – it remains on your system as long as no new data is written on top of it. Data Recovery Pro is recovery software that searchers for working copies of deleted files within your hard drive. By using the tool, you can prevent loss of valuable documents, school work, personal pictures, and other crucial files.

About the author
Olivia Morelli
Olivia Morelli - PC & Mac repair expert

Olivia Morelli is a young, but a perspicacious IT expert who is currently just a year away from a Bachelor’s Degree in Software Systems. Her primary passion is cyber security, however, thanks to her detailed understanding of computer networks, operating systems and hardware, she can find a fix for any PC or Mac issue...

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