Got the 10.1 for Xmas and it's been ok until yesterday. When I touch the home button it has a circle that says 'google' at the top and a fingerprint emblem shows as I touch it. It's also been acting like someone else has remote control of it, like it has a virus or malware. For instance, I'll go to settings and the wifi stuff is on the screen and it puts each one I have showing in the field and I have to cancel out of each, very frustrating. Also does that with other apps and settings. I have AVG antivirus app but it will not run. Any suggestions? I have no confidential info on it, and will probably keep it that way if it has vulnerabilities.