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mbcut.dll not found

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  • Staff

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  • Staff

I took a look at your logs and checked my own system and sure enough, there appears to be no mbcut.dll in your Malwarebytes Program Files folder though it does exist on my system.  I'm guessing either something removed it or that it wasn't properly replaced during a recent program update, like perhaps the recently released component update 1.0.421 which I see you have installed.  I'd recommend downloading the latest build from here and installing it over the top of your existing version, then opening Malwarebytes and navigating to Settings>Application and clicking the Install Application Updates button to make sure it's fully up to date.

The only other issue I noticed was this referenced in your update log:

File not found in update pkg: C:\PROGRAMDATA\MALWAREBYTES\MBAMSERVICE\ctlrupdate\mbae.sys

It does mention the mbcut.dll file here, but it doesn't list any errors about the file:


So perhaps it was in the process of moving/replacing files during the update and there was an issue that caused it to fail to replace some of the files it moved.

Please let us know how it goes and if any issues persist.


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  • Staff

I bet there is some kind of problem with the recent component package causing this.  It seems many users are having this issue right now, but hopefully a quick reinstall is all it takes to fix it.

Also, please check to verify that you have the latest build installed now:


If not, then go to Settings>Application and click the Install Application Updates button again to force it to update to the latest version and let us know if the problem returns.

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