PSA Antimalware Service Executable eating up 95-99% memory with MHW

[R.J.Travis]

Myself and my friends all have been having issues were our game starts to stutter after around one hour of game play and I happen to check to see what my cpu/memory usage was and it seems MHW:Iceborn and windows defender really don't like one another. every 3s of MHW being open cases windows defenders anti malware to use .5% more memory leading to a point after about a hour of it using 95+% of our memory on all 4 of our pc's. I will link a few screen shots before and after a 30min session.

Before 30min - https://www.dropbox.com/s/sywj1qvki1h2ppx/screenshot%202020-01-15%2016.49.37.png?dl=0

After 30min - https://www.dropbox.com/s/06c6kr52b1xwg7u/screenshot%202020-01-15%2017.54.06.png?dl=0

with in 30min it jumps from 2% to 60% and keeps going up.

Only fix I've found is to turn off windows defender.

[Seamus]

Known issue.

[DoleBananas]

Use the anti-cheat bypass.

[Sid Longwei]

It's a memory leak with this games anti-cheat and windows defenders, disabling windows defender or using another anti-virus software will solve your issue til the next patch comes addressing the anti-cheat cpu issue.

[DruPon]

It can just turn off Automatic sample submission in Windows security settings.