Help! System devestated by Zeroaccess! I think it's gone, but cannot access internet to verify

All was well, and normal, when all of a sudden, I start getting these warnings that Norton stopped an attack. I look at it, and see that something called a zeroaccess trojan was blocked; not removed, not quarantined, blocked. All of a sudden, I find that it is taking forever for me to get to webpages, and then redirected to other pages. Meanwhile, it keeps popping up that zeroacces keeps getting blocked. I don't remember all of what I did, but at some point, Norton Powereraser comes up and says it can revert the computer back and remove the rootkits associated with the zeroaccess, so I click ok. After an agonizing hour or more (how long it took to restart, after a nearly infinite loop), the computer restarts, but now I cannot connect to the internet. Upon much research, I have learned that the zeroaccess is the culprit, that it likely came from some Adobe Flash updater (very likely), and that it the reason I cannot connect to the internet. I cannot pull back Norton, for some reason. I tried to launch it, and it goes into Norton Autofix, with the following errors: 8504, 104. Cannot resolve these, because it cannot connect to the internet. I also read something about an ipstack or something? Anyway, I have tried several things in the internet settings, to no avail. Any ideas? Likely the zeroaccess is gone, as I have read that when they are removed, they do something to prevent you from connecting. Anyway, thanks for any help that anyone might have.