Mediaportal & Antimalware Service High CPU issue (1 Viewer)


Portal Member
January 2, 2016
Great Britain (UK) Great Britain (UK)
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I've been using MP1 on a dedicated HTPC for some years now, but recently I'm struggling the software to work. Whenever MP1 runs now, CPU usage on the machine immediately maxes out at 100% with Mediaportal and Antimalware Service fightng constantly and bringing the machine to a complete halt.
This isn't for an install, this is normal running of the latest version of MP1. The high CPU usage doesn't drop over time... after 25 minutes, task manager still shows both fighting for resource.
Anti-virus on the PC is either Avast or AVG (I've tried both... one at a time) with every Windows Defender/Security option I can find disabled
I'm out of ideas... can anyone help?


Portal Pro
October 26, 2007
Rainy Washington
United States of America United States of America
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I would scan the MP1 folders and if nothing shows up then exclude the MP1 folders from scanning in the antivirus program.


Portal Member
January 2, 2016
Great Britain (UK) Great Britain (UK)
Country flag
Managed to get the Antimalware to stop taking up so much CPU... but that's actually made things worse. Now mediaportal steals the whole CPU for itself... gets as far as 'loading windows plugins' on the startup and then goes no further, but still holds the CPU.
I've tried disabling plugins in the configuration to see if I can figure out if one of the plugins is causing the problem, but soon as I load MP.. everything gets enabled again.

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