How to: Fix Mbamswissarmy.sys Boot Errors Using 3 Easy Solutions

Here we can see, “How to: Fix Mbamswissarmy.sys Boot Errors Using 3 Easy Solutions”

Many things can go wrong since antimalware tools are required to boot with the OS. An antivirus can wreak havoc on the boot sequence in various ways, which will, in the best-case scenario, lengthen boot time.

Worst-case scenario? It will cause the system to become unstable, and you will be unable to boot at all. Malwarebytes users will receive the “mbamswissarmy.sys” boot error when the antivirus driver becomes corrupted.

Thanks to Malwarebytes’ dedicated community, we were able to come up with a few remedies. Take a look at them below.

How to fix mbamswissarmy.sys corruption issues

Solution 1 – Boot into Safe Mode and uninstall Malwarebytes with MST

This is the most effective and secure approach to dealing with this problem. The corruption of the mbamswissarmy.sys driver appears to be the cause of this big problem.

This driver starts up with the system and handles on-boot cleanup of harmful files that have been removed or quarantined. As a result, it must begin with the system. Furthermore, because it is a critical component of the startup process, its corruption will result in boot failure.

If you can’t boot normally, the simplest approach to solve the problem is to enter Safe Mode and uninstall Malwarebytes antivirus.

Using the MST is the most effective method (Malwarebytes Support Tool). You can delete all linked files and registry entries with it. It should be simple to reinstall Malwarebytes after that.

To download MST and then boot into Safe Mode, follow these steps:

1. 1. To go to the Advanced recovery menu, restart your computer three times.
   2. Select Troubleshoot from the drop-down menu.
   3. Select Advanced Options and then Startup Settings from the drop-down menu.
   4. Press the Restart button.
   5. Select Safe Mode with Networking from the drop-down menu.
   6. Download Malwarebytes Support Tool here if the system boots correctly.
   7. Install and launch the application.
   8. You can either try to restore the installation or uninstall the antivirus completely at this point. We think it’s best if you get rid of it.
   9. Restart your computer after you’ve removed Malwarebytes antivirus. It should normally begin with no errors.
   10. Here’s where you can get the antivirus setup file and reinstall it.

Solution 2 – Delete or rename the “mbamswissarmy.sys” file

If the previous step did not work and you cannot boot into Windows, even in Safe mode, you should attempt the next step.

To begin, go into Safe Mode and proceed to C:windowssystem32drivers, where you should rename mbamswissarmy.sys to mbamswissarmy.sys.old. Continue below if you are unable to do so.

The essential goal is to go to the elevated command prompt, from which you should be able to uninstall the mbamswissarmy.sys driver. Even though this isn’t a risk-free method, it should fix the problem.

There’s a chance the system will be severely harmed. However, the affected customers had no further problems in many of the reported situations.

If you cannot delete or rename the driver, you can still block it from running by deleting its registry entry. This alternate fix should get you up and running and allow you to boot normally.

You’ll need an external installation disk and a different PC to generate it on for both alternatives.

To deal with the “mbamswissarmy.sys” driver and boot into Windows 10, follow these steps:

1. 1. Make a bootable installation drive on a different computer (with Media Creation Tool).
   2. Restart your computer after plugging in the USB drive or inserting the DVD.
   3. Set the USB drive as the primary boot device in the BIOS.
   4. When the Windows 10 files have loaded, go to the bottom and click “Repair your computer.”
   5. Select Troubleshoot > Advanced options > Command Prompt from the Troubleshoot menu.
   6. Type the following command into the command prompt and hit Enter:
      • • sc delete  MBAMSwissArmy
   7. Alternatively, type the following command:
      • • reg delete /f HKLMSYSTEMCurrentControlSetservicesMBAMSwissArmy
   8. Remove the USB drive and restart your computer.

Solution 3 – Backup your data and reinstall Windows 10

Finally, if neither of the two preceding steps successfully resolved the issue, you may need to reinstall the operating system.

Of course, before erasing the system drive, make sure to extract all vital data using a third-party tool or command line.

After that, downloading the Media Creation Tool and creating the installation media should be an easy procedure (DVD or USB Flash drive).

Conclusion

I hope you found this guide useful. If you’ve got any questions or comments, don’t hesitate to use the shape below.

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