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Twice now in the last week, my system has crashed for no apparent reason giving me the BSOD.  In one case, I was typing an email.  The other case occurred while the computer was idle.  I have Windows 10 Pro and am using the latest paid version of Malwarebytes - Premium 3.4.4.  Windows gave me the following message:  "Stop code: SYSTEM SCAN AT RAISED IRQL CAUGHT IMPROPER DRIVER UPLOAD.  What failed: mwac.sys".  As far as I can tell, everything is up to date.  If you require additional information, please let me know.  Thanks.

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1 hour ago, rray6 said:

I have Windows 10 Pro and am using the latest paid version of Malwarebytes - Premium 3.4.4

Actually the latest version of Malwarebytes is 3.4.5... try updating to that one and see if you still get a BSOD...

Download the Latest MB3 v3.4.5.2467 CU 1.0.342 from ->>RIGHT HERE<<-

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Thanks.  I just installed version 3.4.5.  I had tried to determine if version 3.4.4 was the latest version before I originally posted but the update feature within the program said "no updates available".  Thanks for the link.  I will monitor my computer with this new version installed for a few days and then report back.


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Yes, when checking for database updates it often doesn't check for new program versions.  To do that reliably you need to go to Settings>Application and click the Install Application Updates button.  That will force it to check for new program versions and prompt you to download and install them if any are available.

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