Using mcafee.com/activate as an anti-virus provides you with the security shields to prevent malicious files from entering within the Desktop, laptop/smartphone via malware, spyware, rootkit and Trojan horses. As people all round the world perform their everyday work on their official and private computers, they require total security against all types of threats that these virus files can cause. These viruses are generated suddenly from old PC-stuck files or suspicious computer virus , spyware and malware online websites.