From last two or three months, I am into a big trouble that my computer is encountered by virus attacks. My all important files and folders have been corrupted by malicious virus attacks. To keep the security of computer system, files and folders, I want to use Mcafee antivirus for a long time. But I don’t know how to install it. So, I want to install Mcafee antivirus from mcafee.com/activate. Can you guide me all the steps to download Mcafee antivirus correctly?