I ran combofix . . . an absolute disaster.
It ran for a few minutes and I left the room. When I came back the sign in screen was on. After signing in combofix took over the computer with rapid recurring minimized fluttering windows which I could do nothing with.
After letting it run for about 10 minutes, I manually shut down the computer and rebooted in Safe Mode. From there I was able to do the most recent System Restore and now am back to this perplexing problem.
I looked at the add-ons and disabled many of them . . . I did not disable any of the about 30 Microsoft ones found in the "run without permission" listing.
Prior to running combofix I had disabled Microsoft Security Essentials, my antivirus. After restoring it defaulted to being back on. I then ran the full version of it and after checking 3276835 items, it returned a clean bill of health.
Oddly, I cannot access some well known sites like Microsoft.com and USAA.com but can access sites like EBay, Costco, etc.
Also, I am now getting a lot of "Errors on this webpage might cause it to work incorrectly". In details it says "str is undefined". For example, this is happening on this Forum site and my email sign-in window.
Where do I go from here?