Installed anti-virus software has become very slow computer

Ago, had thought that the antivirus software can be installed to prevent the virus from entering your computer, so each system must be re-install a antivirus software, but with the escalation of anti-virus software, accounting for more and more resources, and install antivirus software, computer will become very slow very slow. This is normal!

How can we make it, first bought a better computer Units, two anti-virus software is not installed. In fact, if you computer does not have any important documents, are not installed antivirus software. Since installed antivirus software is not 100 percent to prevent the virus, another virus will always have a little more than anti-virus software updates faster, in other words the only antivirus software with virus.

So if there is no particular importance to the things we can install a 360, there was little need to install antivirus software.