The short and firm answer: NO.
Why? Because Windows 8 brought in the industry-proven Security Essentials, which is currently available as a free separate download for Windows users, to reborn the long fading Windows Defender, meaning that Windows 8 users will get an out-of-box anti-virus solution.
Head over to Control Panel, select View by Small icons, you will be able to see Windows Defender listed there. Double click to launch it. What you see is what we see similar on our Windows 7 machine that has the Security Essentials installed.
If you compare the about Window on both products, you will find Windows Defender on Windows 8 is pretty much the same as Microsoft Security Essentials on Windows 7.
This is from Windows Defender:
And this is from Security Essentials:
It’s a bad news to those anti-virus vendors but is a very good news to the end users. It’s a long overdue piece that should be part of any of Operating Systems. A poll conducted on ZDNet shows 82% of people are welcoming this idea while 18% of people are still thinking creating a security monoculture is a bad idea.
With Windows Defender stands up and the close environment for the Metro Apps, there are not much room left for these 3rd party anti-virus vendors. Yes, people may still not like what Microsoft offers and love to cough up some money for their products. But one thing is certain that the anti-virus market on Windows is obviously shrinking. They may switch their attention to somewhere else, like growing-crazy Android market. Because it’s chaos there and malwares like chaos.