Going from your Introduction post (that you are receiving popups and the like), start out with running Malwarebytes Antimalware, and post the log here after removing everything it finds.
After that, run HiJackThis and post the log here (don't remove anything unless told to do so). Download it from here, and run it as Admin:
HiJackThis | SourceForge.net
Also, go through your Programs & Features list and look for any Coupon programs, uninstall any toolbars, "extra" security scanners (like the McAfee Security Scanner), etc.
What AV are you running as well? I'd recommend either Avast, Avira, or BitDefender Free.
Also, check your browser's Extensions/Add-ons lists for any rogue entries that were install.
Would be a good idea to check your proxy settings as well. Control Panel -> Internet Options -> Connections tab -> LAN Settings... -> make sure "use a proxy" is unchecked.
You could also go through your Startup list and making sure there isn't anything bad coming up there. Start -> Type "msconfig" (without quotes) -> press Enter -> Startup tab -> make sure nothing in starting from the AppData directory, and go through the list and see if there's anything else you'd want to disable (you could disable everything except for your AV, really).