Thank you for sharing your config!
Windows 8 has excellent security built in, & also having heard about Panda & CCleaner here, my absolute favorite addition used on each of the 3 computers of our household has been Sandboxie
http://www.sandboxie.com/ . It shields your system while your Chrome browser moves freely online within the containment of a Sandbox, and (in my humble opinion) it is, at present, the closest one can come to complete safety.
That, and sensible decisions, both of which are greatly encouraged by many here whom are wiser than me!
Remember, if there is anything you do not understand, don't hesitate to ask ..through a personal conversation or on this post. You'll definitely get lots of answers! PS The (2) most highly regarded secondary scanners I've learned of on MT, & recommend, are HitMan pro
http://www.surfright.nl/en/hitmanpro/ & Malwarebytes Anti-Malware (no connection to our site. ...none that I know of..
)
http://www.malwarebytes.org/free/ . Both are excellent, limited
free, plus I (in fact) used HitMan Pro on our Windows 7 64 bit this morning!