From looking at the logs and what files/settings/tasks that are left over on the system, I would say that there has been some damage done by frequently installing / uninstalling / System Restore related to trying the different AVs. From what I see, you have had
McAfee
COMODO
AVG
Avast
Malwarebytes
WinPatrol
of which the first three could have left traces that would interfere with later installed AV scanners (and possible changed the system settings to produce zero byte files and unreadable file attributes). I can remove the errors / left over files with the malware fighting tools but my personal opinion (for what it is worth) is that the system will not be 100% even than. Your best bet would be a fresh install of Windows (fresh as in a reformat of the drive and then installing).
If you are still worried about a rootkit being present (before redoing Windows that is) then you could also scan with TDSSkiller by Kaspersky Labs ( see here ). I can provide help and directions on TDDSkiller if you need it.
I will leave the ball in your court (so to speak); let me know if you want to try the malware tools scripts to remove / repair or if you are going to do a fresh install. Thanks.
