Take a look at CNET and in the search box type in Free Virus Protection. There are several including a version of Norton and Barracuda that are free or, if not, fairly inexpensive. I'm running Earthlink which has virus protection as well as a great pop up blocker, anti scam and anonymous emails which seem to causing me my heartache here at CHR, plus Norton. So far in three years with this PC, no problems (except here where I can't get my 'name' back nor my notifications since Brent's new hard drives) but that my computer is somewhat slow booting up on the internet due to so many security checks. Since I came from the corporate world where loss of information in any way could have cost my company(GE Power Systems) many millions, feel that I have about as good a level of protection possible and still able to function reasonably well.