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Mbamswissarmy.sys Boot Loop


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I haven't been using my desktop much lately and I went to boot it up the other day (which was odd. I usually leave it booted up) and ended up in an auto repair boot loop. I don't recall shutting it down. I did some research and read that overheating can cause this, which made sense because my AIO cooler was making a grindy noise awhile back. I trashed the cooler and installed an air cooler as a first step so I didn't run into the problem again and then did some more Google searching. 

I tried a few things and eventually got the BSOD message about mbamswissarmy.sys. I searched that and found this thread: 

His experience was incredibly similar to mine, except I don't think I even shut my pc down. I even tried some of the same things he did after looking for a fix on several websites. Here is my FRST log. I checked the two optional boxes in case they were needed. Let me know if I need to rerun. I appreciate any help I can get. If this doesn't work, my next step is to basically buy a new windows license and reinstall (can't find my old disc). Thank you!


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  • Root Admin

Hello @JakeCook

Are you able to boot into Safe Mode or Recovery Environment?

Please see if the following suggestions help or not and let me know.



Last Known Good Configuration (advanced)

Disable automatic restart on system failure

Disable early-launch anti-malware protection


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Please run the following for me so that I can review your system and see if we can detect any issues.


Please download Farbar Recovery Scan Tool and save it to your desktop.

Note: You need to run the version compatible with your system.
You can check here if you're not sure if your computer is 32-bit or 64-bit

  • Double-click to run it. When the tool opens click Yes to disclaimer.
  • Press the Scan button.
  • It will make a log (FRST.txt) in the same directory the tool is run. Please attach it to your reply.
  • The first time the tool is run, it also makes another log (Addition.txt). Please attach it to your reply as well.

Thank you



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You have an old, compromised version of Java on the computer. I would highly recommend that you uninstall that from the Control Panel

Java 8 Update 45


What is this Task for? It cannot seem to find a file associated with it.

Task: {48CDCBA8-E2EA-432F-BA09-8F12C447BB8C} - \Microsoft\Windows\Maintenance\Web Tool Updater -> No File <==== ATTENTION



You have some very old software that needs updates but I don't see any obvious reason why our driver would have been having an issue.

Please download and run the following program and let it find and update these other programs.


Patch My PC Home Updater



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Let's go ahead and also run the following scan to see if it finds anything suspicious or not.


The Microsoft Safety Scanner is a free Microsoft stand-alone virus scanner that can be used to scan for & remove malware or potentially unwanted software from a system.

The download links & the how-to-run-the tool are at this link at Microsoft


Please let me know the results of this scan.

The log is named MSERT.log 

the log will be at  %SYSTEMROOT%\debug\msert.log   which in most cases is


Please attach that log with your next reply.



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Sure thing. Yeah, some of the stuff on here is out of date. Since I got a laptop for work, I generally only use this desktop for gaming, and I haven't done very much of that in quite awhile. I had a back injury that limits my time seated. There has been neglect on this machine for sure. I'll start with the updater and then go to the safety scanner. Also, I have no idea what that task is. 

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Once your updates are done please go ahead and run the following which will do some generic clean up and maintenance for the computer. Maybe there was some type of corruption that caused the issue.



Please download the attached fixlist.txt file and save it to the Desktop or location where you ran FRST from.
NOTE. It's important that both files, FRST or FRST64, and fixlist.txt are in the same location or the fix will not work.

Please make sure you disable any real time antivirus or security software before running this script. Once completed make sure you re-enable it.

NOTICE: This script was written specifically for this user, for use on this particular machine. Running this on another machine may cause damage to your operating system that cannot be undone.

Run FRST or FRST64 and press the Fix button just once and wait.
If the tool needs a restart please make sure you let the system restart normally and let the tool complete its run after restart.
The tool will make a log on the Desktop (Fixlog.txt) or wherever you ran FRST from. Please attach or post it to your next reply.

Note: If the tool warned you about an outdated version please download and run the updated version.

NOTE-1:  This fix will run a scan to check that all Microsoft operating system files are valid and not corrupt and attempt to correct any invalid files. It will also run a disk check on the restart to ensure disk integrity. Depending on the speed of your computer this fix may take 30 minutes or more.

NOTE-2: As part of this fix all temporary files will be removed. If you have any open web pages that have not been bookmarked please make sure you bookmark them now as all open applications will be automatically closed. Also, make sure you know the passwords for all websites as cookies will also be removed. The use of an external password manager is highly recommended instead of using your browser to store passwords.

The following directories are emptied:

  • Windows Temp
  • Users Temp folders
  • Edge, IE, FF, Chrome and Opera caches, HTML5 storages, Cookies and History
  • Recently opened files cache
  • Flash Player cache
  • Java cache
  • Steam HTML cache
  • Explorer thumbnail and icon cache
  • BITS transfer queue (qmgr*.dat files)
  • Recycle Bin

Important: items are permanently deleted. They are not moved to quarantine. If you have any questions or concerns please ask before running this fix.

The system will be rebooted after the fix has run.




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Sorry this took so long. 

Ran the updater. There was a lot to do there, obviously. Flash failed. Corrupted installer. Everything else went fine. I went in and uninstalled quite a few things as well. 

Ran the MS scanner. Went full scan, in case you needed that. This is what took so long. No negatives found. Attached log. 

Lastly, I ran the fix you provided. This took awhile as well. When it finished, it rebooted, and Windows ran a drive repair on C:. Not sure if that was part of it or not. Attached log. 

I've actually been looking at some password managers lately. I've noticed that I've had some notifications recently about compromised passwords and it's something I've considered off and on for awhile, but I think it's probably time. Nordpass looks promising. I really appreciate the help you've given me so far. Above and beyond. 

msert.log Fixlog.txt

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Hi @JakeCook

Yes, the disk check was scheduled on purpose by the script. The SFC and DISM tools (part of Windows) were also ran and they found and fixed issues too.


Windows Resource Protection found corrupt files but was unable to fix some

The restore operation completed successfully. The component store corruption was repaired.

Then on the second run it came back with the following, which is good.

Windows Resource Protection did not find any integrity violations.


Please read the following concerning Password Managers

Password Managers Compared: LastPass vs KeePass vs Dashlane vs 1Password


Please go ahead and restart the computer one more time (when you're ready, no rush or need to do tonight) and run the FRST program again and click the SCAN button and post back both new log files.


It's quite late for me too so I'll check back on you again some time tomorrow

Have a good evening and thank you for all the work and current logs.




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I figured you went to sleep, so I did too.

I think I read that article last time I was researching pass managers. I'll need to read it again, so thanks for the link.

You're more than welcome for the work/logs, but you shouldn't be thanking me lol. You're the one helping me out. I've noticed that people tend to bounce as soon as the first FRSTfix log gets passed to them. Apparently, it's pretty beneficial to stick around longer (for people reading this after the fact). Here's those logs you asked for: 

FRST.txt Addition.txt

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Most Experts no longer recommend the use of CCleaner - the choice is yours though.

If you can use your computer without Java that would be best. If not then make sure you uninstall old versions and keep it up to date at all times


Windows Update thought it found an update for your video driver but the install failed.

Error: (02/25/2021 06:29:48 AM) (Source: Microsoft-Windows-WindowsUpdateClient) (EventID: 20) (User: NT AUTHORITY)
Description: Installation Failure: Windows failed to install the following update with error 0x800f0102: NVIDIA - Display - 10/27/2017 12:00:00 AM -

You may want to go to the main Nvidia support site and download the latest driver for your video card and update it.



Let me have you run one more fix with FRST.  Please download the attached FIXLIST.txt file and save to the same location as FRST as before. Then click the FIX button.

When done please post back the FIXLOG.txt file.




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4 minutes ago, AdvancedSetup said:

Thanks! I'm downloading the driver now. I've used CCleaner for years. Is there a replacement you'd recommend? Also, I do not see a fixlist file attached.

I'll get rid of java entirely a bit later, as I don't recall the last time I used anything that even needed it. 

I also plan on upgrading to 10 later this evening, most likely, and after researching pass managers last evening and during breaks today, I went ahead and purchased a year of BitWarden. Just seemed like the best option for me. 


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Yeah, I could have sworn this PC had been upgraded, but I guess not. Sittin here on 8.1. I never minded the metro screen like some other folks so maybe I just never got around to it. Apparently, you can still upgrade for free.

That's interesting about the trackers. BitWarden says the Firebase tracker is for push notifications to sync the vault and the other is for crash reporting and that no analytics are collected. Sounds innocent enough, but if 1password and KeePass don't need them, then why does BW? Trackers weren't mentioned in anything I've read prior to this. 


Here's the log:



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