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Windows 8 - McAfee OnDemand Scanner blocks Thunderbird

I'm using Windows 8, have McAfee Virus Scanner and Mozilla Thunderbird installed.

When I start Thunderbird, the CPU consumption of the on-demand scanner process goes up and thunderbird becomes non-responsive (no-response).

I have to kill Thunderbird to resolve it.

When I disable the McAfee on access scanner, I can use Thunderbird normally.

I also use Windows 7 on another machine, there McAfee and Thunderbird work well together.

Any help is greatly appreciated.


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