McAfee liveSafe fully up to date as of this posting - numerous McAfee services are consuming VERY HIGH CPU usage. I see this has been an issue in other posts here but given fully up to date has this issue come back?!
I might have found out why it was so slow an my laptops. One of them has finished the full system scan and now that one runs quite with a normal speed I think.
However that doesn't explain the high CPU usage. And I would still like to know why my laptops are almost blocked during scanning. Especially because the scans take many hours for 290000 files. This is definitely not acceptable and I would like to know whether I can adjust the full system scan so it doesn't block my entire laptop.