Whenever I have a techy/comptuer question - I go straight to Admin
. I was having a virus problem within this last year - and this was the program recommended to me (free, easy):
Malwarebytes Anti-Malware - Reviews and free Malwarebytes Anti-Malware downloads at Download.com
For backup, I use an external hard drive. But then, I also use an online back-up service (myotherdrive.com), so that the files are not only backed up there, but I can also access my files from anywhere - which I love. I have tried quite a few of the online back-up services and
My Other Drive is it for me and their customer service is great (whereas at other onlines, it's....nonexistent).