Most everything I've done so far seems to reveal no infection, but I can't access *.microsoft.com (which prevents me from running Windows Update), and when I installed A-squared (free version), it wasn't able to connect to its update server (still can't -- so I copied all the files from another computer's A2 installation which was up-to-date). A-squared did find one medium-risk item, so I removed it, but the condition remains. Other websites work fine.
The firewall I have installed, Online Armor, which shows up in the logs, was installed after the issue was noted. ALso, one of the logs says it was enabled, but it was actually in learning mode so it wouldn't get in the way of the scanner.
I looked at some other threads in an attempt to predict what logs would be desired, so I've posted logs from HJT, DDS, and GMER.
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Some websites seem to be blocked, such as microsoft.com 
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