Whether ESET is the culprit or not, it doesn't help us, the little guy. I have had a day's lost productivity and it sounds like others have had more. Although I am sympathetic to ESET for having to deal with the possibility of a bug in the OS, at the end of the day, I am glad that I can hope to get back to productivity without some of the nightmare that others have expressed; I found this forum before rebuilding my PC! Lets just all do what we can now to get to the bottom of the issue and resolve it ASAP.