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MalwareBytes Causes Windows 10 2004 Problems

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I recently updated my instance of Windows 10 from version 1909 to version 2004.  After the update, Windows began acting very, very slowly and almost to the point of being unresponsive.  Then, I saw a post somewhere that said that MalwareBytes 4.1 was causing a problem with this new version of Windows 10.  On the chance that this was also my problem, I quit MalwareBytes from the Taskbar Tray area.  Upon doing this, Windows amazingly began operating as it should.  I've since disabled the automatic start of MalwareBytes at Windows Start-Up.  I've no doubt that you've heard of this conflict of Windows 10 and MalwareBytes 4,1 from other users.  The reason I'm writing this is to ask that I be notified when a fix has been published (MalwareBytes is currently disabled).

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  • Staff

***This is an automated reply***


Thanks for posting in the Malwarebytes for Windows Help forum.

If you are having technical issues with our Windows product, please do the following:

Malwarebytes Support Tool - Advanced Options

This feature is designed for the following reasons:

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Please do know that the condition described is not universally the same as far as those pc's running Windows build 2004.

There are differences in situations.   What should help to start with is a clean re-install of the Malwarebytes for Windows.

Please try uninstalling and reinstalling Malwarebytes for Windows using the Malwarebytes Support tool. 

Uninstall and reinstall using the Malwarebytes Support Tool


Please have lots of patience with the tool.  The first phase is a cleanup and does require a Windows Restart.
After the Restart, it may take 2 - 3 - 4 minutes till the Support tool screen shows up.   Please be patient and have faith.  Wait for it, whatever it takes.
The 2nd phase is where it offers to do a new Install.

Let me know  the result after that.   As needed, we could take some other followup measures.

Edited by Maurice Naggar
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For the benefit of other readers,   Malwarebytes  for Windows Beta version  with Component update 1.0.946  was announced & made available Thursday June 4.






For the benefit of other readsrs:     To get the latest Beta do this.

In Malwarebytes,  click Settings icon & then on the General tab

Look for the section "Beta updates"   and on that line, click it all the way to the right.



Edited by Maurice Naggar
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I uninstalled MalwareBytes using the tool mentioned above (see attached)and reinstalled it using the same tool BUT 'm still experiencing the same slow-down as before.  My CPU went to 96% and I finally had to restart several times before I could Quit the program using the taskbar tray application.  I'm back to the point where I don't let MWB start with Windows.  BTW, I don't have the Beta Updates switch turned on.  I'm also attaching a screenshot of my Security settings.



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Hi @ Hardcopy1

imho,  You ought not to have on the "Enable self-protection early start"   or the "Enable self-protection module"

also imho,  you should re-consider having the Beta

That has improvements and fixes as well.   and you will continue to get notices for new versions.

Thanks for the mbst-clean report.

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I took your advice in regards to the self-protection settings and regarding the Beta versions.  After the installation of version, Windows 10 version 2004 is operating much better.  Thanks for your help.  Any idea when MWB will become GA?  I generally don't install Beta versions but in this case I made an exception.

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Very good on your part.  Bravo.   

I have no knowledge of a actual next "release'.   However, my past experience over all these many many years, I would tend to expect a official release in a week or so.

In any event, as long as your program is on the beta, it will continue to self-update as needed.

I am glad that we appear to have your machine in good stead.   I know of at least one other person who also switched the self-protection to off who then had a success.

Let me know if you need other help,   even as time passes.

I do appreciate your courage and this feedback.         :bananas:          :guitar:     

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  • 3 weeks later...
  • Root Admin

Please note that we have released a new beta today that we hope should address the issue with Windows 10 build 2004

If you're running Windows 10 build 2004 and were having an issue please try the new beta and let us know if this beta version corrects the issue or not.

Thank you


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