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Malwarebytes causes Win10 to no longer start


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So Malwarebytes did a scan and found some "potentially unwanted files" so I deleted them. Shortly after, my computer restarts and my BIOS launches "Automatic repair" and proceeds to diagnose my PC. I then get a warning (displayed by windows) that my PC did not start correctly. I have tried rebooting and powering off completely along with changing a few startup settings.

The files that were deleted were in a directory next to the "This PC" main directory when I was looking around in explorer after running it from the command line in the startup repair system.

/SYSTEM/AppData/ and then one of the folders in there, I think "Roaming".

My PC is custom built with an ASUS motherboard and bios, and it had been running for the past 24 hours or so downloading a massive game from Steam.

I'd appreciate if I could fix this without needing a clean windows install being that I have a lot of apps on there that would take a long time to re-download.

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Hello and :welcome: :
 

 

In addition to @yardbird's excellent advice....

 

We are not permitted to work on possible malware-related issues here in this section of the forum.
Such work is conducted in a special forum area reserved for that purpose, or at the help desk.

So, for expert assistance, I suggest that you please follow the advice in this pinned topic: Available Assistance For Possibly Infected Computers.
It explains the options for free, expert help >>AND<< the suggested, preliminary steps to expedite the process.
A malware analyst will assist you with looking into your issue - the helper will guide you through scanning, cleanup and repair.

 

>>If you cannot boot the computer after the malware removal, please just start a new post in the malware removal section HERE, explaining the situation and providing a link back to this topic:

https://forums.malwarebytes.org/index.php?/topic/177018-malwarebytes-causes-win10-to-no-longer-start/

>>The trained experts there will assist you.

Thanks,

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