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MWB makes system slow and unresponsive after update to Win 10 20H2

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After updating recently to Win 10 20H2, I noticed my system becoming extremely slow. Cursor lags, audio distortion, typing lags, and processor maxed out.


It was driving me crazy for days until i ran across a post where someone said they encountered similar issues, which resolved when they turned off the ransomware feature on MWB. I tried that, and it appears to have fixed the issue.


I came to the forums and looked for a better solution. I downloaded the support tool and repaired/reinstalled MWB ( is the latest version. As soon as I enable Ransomeare protection, the system shortly becomes almost unusable. 


Anyone else having issues like this?


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***This is an automated reply***


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I see why turning off ransomware protection works for you.


(Acronis International GmbH -> ) C:\Program Files (x86)\Common Files\Acronis\ActiveProtection\anti_ransomware_service.exe

I also see Avast. If you wisk to keep it,

I recommend creating exclusions between Malwarebytes and Your AV to help prevent any possible conflicts or performance issues.  Please add the items listed in this support article to Your AV 's allow list(s)/trust list(s)/exclusion list(s) particularly for any of its real-time protection components and likewise add Your AV 's program folder(s) (likely located under C:\Program Files and/or C:\Program Files (x86)) to Malwarebytes' Allow List using the method described under the Allow a file or folder section of this support article and do the same for its primary data folder which is likely located under C:\ProgramData (you may need to show hidden files and folders to see it).


Please also refer to this support article which lists several known applications which conflict with the Web Protection in Malwarebytes currently, which includes Avast.

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I've been using MWB and Avast for some years now and they tend to play along nicely. Although Acronis recently added their A/V and Ransomware features, things were going well until Win 10 20H2. However, being new to the A/V game. Acronis may not play well in the new environment, so I'll give it a try and see what happens. 

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3 minutes ago, patjade said:

I've been using MWB and Avast for some years now and they tend to play along nicely.

Both programs change constantly. I could,but wont go into Avast's policy's since they went on a buying spree and purchasing AVG and CCleaner's parent company.

If you need good backup/imaging software I suggest Macrium reflect.

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I also had Acronis and had used it since 2007 and things were so much easier back then until around 2016 when Acronis added Ransonware protection. The last version I had was 2018 Acronis and I ended up dumping it because its a major resource hog and I was also have error issues with Windows 2004 and I currently have Windows 20H2. I can only imagine how much more it has became bloated in the latest 2021 version. Had to say goodbye after many years and also went with Macrium Reflect and it's very simple to use too.. I run Malwarebytes and Defender and all runs well on my old Satellite C55.

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