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BSOD of Thunderbird since WIN 1809

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Everything was fine on my pc . I have the latest update (illimited account) of Malwarebytes(MB). I use also Thunderbird (latest version) (TB). Then, I decided to update windows to 1809 version. And now, at launch of TB, Windows crashes with a BSOD.

I made various tests and it appears that

_ With all 4 protection modules of MB activated, TB crashes at launch (BSOD : irq not equal, etc.)

- If I  just deactivate Web protection module of MB, TB won't crash.

I checked again and again, even removed extension modules from TB, the phenomenon is constant.

So, at the moment, I use MB without WEB protection module , and everything runs fine.


Any solution ?





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Hi Jaco,

We typically see this blue screen with email client use when McAfee is installed alongside Malwarebytes. Do you have a McAfee product installed?

If you do, please uninstall the program and verify the blue screens stop (ensuring you re-enable Malwarebytes Web Protection).
Afterwards, you can reinstall the McAfee product if desired and should find no further issues encountered.

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  • 2 months later...
38 minutes ago, Nadreau said:

Many thanks to Jaco. How did you get to identify Malwarebytes as the troublemaker ? I uninstalled MB and Thunderbird works fine. Thanks again.


If your issue is indeed the same one being reported by the others in this thread then all you need to do is uninstall McAfee (not Malwarebytes), then reinstall McAfee and the issue should be resolved.  You should then be able to keep both Malwarebytes and McAfee together and shouldn't have the blue screen issues any more when running Thunderbird.

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