In case you are confused by the recent pop-up messages, and the news reports suggest you may be, Grisoft still have a free version of AVG Anti-Virus available and it is even better than it used to be. All that is happening is that v7.1 is going out of currency and you need to upgrade to 7.5. It is not as easy to find as it used to be but is still the best value product out there. I haven’t tried the Anti-Spyware tool yet.
AVG Free Advisor: Free Anti-virus, anti-spyware and anti-malware tools