DavidR
Please look again at the post by 'wonderwrench' - the second error I mention is immediately underneath that section.
The errors appear exactly as they do in Bill's post - within 5 seconds of each other.
These 2 errors appear on every boot.
The third error in Bill's list, ID 2 under Microsoft-Windows-Kernel-EventTracing (Session "" failed to start with the following error: 0xC000000D), appears occasionally (three times so far since installing avast! 8 Free), 15 minutes or so after startup or on initiating a system shutdown/reboot.
They never appeared before the installation of avast! 8 Free.
There is no confusion. They are related to avast! 8.
Regards