What are the good antivirus that i must have?

what are the good antivirus that i must have?

i already have norton and AVG but im planning to remove norton.

what other anti virus or anti spyware, adware i must have to protect my computer from threats?

thanks.

what software i must have to have a firewall protection?

What are the good antivirus that i must have?spyware removal

All of these are ones that I personally use and all are free.After you install any of them,make sure you update them to get the full affect.

Download Grisoft AVG 7.5 Anti-Virus,Anti-Malware.(free)

AVG is a collection of anti-virus protection tools that gives you full protection against viruses, worms, Trojans and malware. AVG provides you with all that you need to be completely protected: including a tool for scanning your hard drive and e-mail, as well as a real-time shield to prevent infections.

Top Features

禄 Provides automatic update functionality

禄 Its a reliable anti-virus scanning engine

禄 Provides free Virus Updates for life

禄 Options to define file name extensions

禄 Real time protection with resident shield, email scanning

http://free.grisoft.com/doc/5390/lng/us/...

Spybot - Search %26 Destroy detects and removes spyware, a relatively new kind of threat not yet covered by common anti-virus applications. Spyware silently tracks your surfing behaviour to create a marketing profile for you that is transmitted without your knowledge to the compilers and sold to advertising companies. If you see new toolbars in your Internet Explorer that you haven't intentionally installed, if your browser crashes inexplicably, or if your home page has been "hijacked" (or changed without your knowledge), your computer is most probably infected with spyware. Even if you don't see the symptoms, your computer may be infected, because more and more spyware is emerging. Spybot-S%26D is free.