High Memory Usage - a Firewall / Antivirus issue?

[klem]

I have been using Commodo for some time but I keep seeing memory usage ramp up (about a 45 degree sawtooth ramp) for up to a minute or so before collapsing down again. This co-incides with commodo's cmdagent.exe showing a massive climbing "Hard Faults / Sec" count in Task Manager's resource Monitor. I only notice this when CoD is running although it may be happening with other programs to a lesser degree. It is visible in Task Manager and in a utility called membooster that I use to repeatedly optimise memory to try to keep it clean and so that I get these warnings and can restart the game before it crashes

I don't understand the true meaning of all this but the co-incidence is there.

I uninstalled commodo and turned on Windows Firewall and Defender instead for my Wednesday night session. I still got one "High Memory Usage" announced by membooster and in fact the game did freeze up on me with the Windows firewall running.

Does anyone know if this ramping/Hard Faults per second is definitely related to CoD and if its worse with any particular firewall? Or am I barking up the wrong tree?

Also, does anyone have an opinion on the best Firewall to be using with COD, along with whether or not they get the crashes (Not CTD but Game freeze/lockup).

Cheers,