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Slowing my machine to a crawl

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My dad purchased and loaded malwarebytes onto his W10 desktop (he'd been using the free version). He noticed the scans were never completing, but everything else was fine. I looked and the scan had been running 129 hours and was still going. This is a fast machine with an SSD. MWB and the support tool would barely run, I couldn't even uninstall the program. I manually removed files, edited the registry and turned off services, rebooting many times, until I could delete all the contents of the Program Files MWB directory. I then ran the clean option of the support tool (it ran a lot better now). I reinstalled MWB, did a scan which completed right under 4 minutes, everything seemed fine. One day later, the computer barely responds to things. MWB was 9 hours into a scan, I cancelled that. The support tool will not run. MWB is at version, update package 1.0.18736, component package version 1.0.810. I turned off the free Avast version for 10 minutes, but that made no difference.

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Just now, astrosteve said:

I looked and the scan had been running 129 hours and was still going.

What type of scan were you running, was it a custom full scan?

Please gather and provide logs with the Malwarebytes Support Tool so we can take a closer look at the issues you're experiencing.

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This is the automated scan that MWB does on it's own, whatever scan was programmed into it as a default.

You didn't read my post - the MWB Support Tool will NOT run.

My dad seems to have paid for this, and where MWB has been a great tool in its free version, it is a miserable failure in the paid version and has ruined his computer.

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2 minutes ago, astrosteve said:

This is on my dad's computer, which I am remotely trying to repair using Teamviewer. There is no way to get it into safe mode remotely.

This makes things a little more complicated.

Lets get a different set of logs.

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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I see no safe option to get into safe mode remotely. That was a great idea for the Teamviewer to do that, I didn't know it had that option. But it is "without networking", which won't help me (and the more I think of it, seems rather stupid!). There's msconfig, which I could set up, but if anything goes wrong, and I can't get into TeamViewer at that point, then msconfig stays in the Safe Mode with networking reboot forever, until reset (from what I read). I can't do that and risk that remotely. My dad would never be able to get out of that mode.

I will try the Farbar thing. But from what I read, that is to find malware. I don't believe there's any malware, except for Malwarebytes. When I painfully removed every scrap of Malwarebytes I could yesterday and finally got it stopped after three reboots, then your support tool ran just fine. It sort of ran before, but not very well. Today it doesn't even start. After removing MWB yesterday, your support tool popped right up and was working great.

Trying to do anything on the computer right now is super painful. It takes several minutes to get into Teamviewer, several minutes to open the browser. Yet, the cpu, memory, disk in the task monitor all look fine. Nothing is pegged at 100%

Trying to run the Farbar thing now...

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39 minutes ago, astrosteve said:

It finally finished running, here's the files it created.

Is the Avast on this machine the Free or the Paid version? If it is the free I would remove it and use Windows Defender.

Did you  know you Windows installation on this computer is 2 versions behind? We are now up to 1909 and when the next one drops in April or May and it does not get updated all security patches will stop until the Feature update is done.


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It is the free version of Avast. I also saw in the files I attached that his updates are behind. I will work on that next for my dad, as soon as the computer gets back up to speed again. Do you think the Avast could be the problem slowing it down with MWB? I did do that temporary shut it off for 10 minutes thing, but that didn't help.

I appreciate your help so far!

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