I ran the TDSSKiller, it scarcely took long at all and didn’t find anything. I also went ahead and ran the Malwarebytes again overnight (took just under 7 hours this time) and it spotted nothing.
However, I’m still having performance issues (slowdowns, etc.), although the frustrating concern of getting bumped off password-required sites I haven’t attempted to check, although I’m about to (oddly enough, it hasn’t happened on FR, but has on eBay, IMDb and other lesser-visited sites).
That is the troubling part for me, that's way too long for a newer machine imho.
TDSSKiller is a very fast running scan, takes less than 5 minutes on my old clunker.
Good to hear that it found nothing because I was suspecting a *root kit* virus screwing up the registry.
Maybe you need more RAM memory, but I think 3 Gb just running Malwarebytes should be adequate and not require 7 hours of run time.