Hi
When you say one process per tab, are you referring to IE tabs? I never use IE, in fact, as I said in my original post, IE will not run. The iexplore processes I have mentioned occurred with no applications open at the time. Having said that, I haven't seen them during the last hour or so.
Anyway, thanks for sticking with this. Logs attached along with latest alert.
Update at 14:26
Also attached is the latest alert which came when I was viewing Task Manager. I presume it's associated with the last entry. Chrome was open at the time but definitely not IE.