I have considered this possibility, we have a backup program that runs twice a day.
I have excluded the backup location (External Drive) from Immunet but also the high CPU usage happens at times when the backup is not running.
There are probably lots of files that get modified on a daily basis by our 7 users.. but I have observed the high CPU usage can occur
first thing in the morning when I am the only one in the building, therefore being the only user and at that point in time I am really only just observing task manager.
We have a large (almost 1 gb ) database - Postgress on this server but again the high CPU happens when no-one is using it.
I'll see what else might be doing lots of writes that I don't know about and get back to you.
Thanks for the quick reply.