The other thing to check is your scheduled tasks, I delete all these and up date myself. Google is one of the worst at this. My antivirus is the only program that I would leave active.
I use a Autoruns to shut down a lot of unnecessary programs at startup, but you have to be careful of that, and if your not knowledgeable enough, you could shut off the wrong thing. i have an old XP as my backup to my Chromebook and the XP I do this with. Clear the Cookies,Cache,Browsing history,hosted data and Flash Player(Website storage) and shutdown. I clear the chromebook as well, before I shutdown, the videos wreck havoc on this game.
It`s 4:30 Am, gotta get coffee
Don