Mcafee

I recently installed McAfee Internet Security 2013 on my PC when suddenly a red banner pop-up and stating that my computer is at risk even though I already updated it. I have tried to perform McAfee total protection repair but it is not working. What are the probable causes that fails my subscription?

I am very pleased with the performance of my McAfee Antivirus Plus 2011.  It has deleted a lot of malware and trojan viruses.  It also repaired some of the damaged files.  How do I renew my McAfee 12 month extension?  Thanks in advance.

My friend told that McAfee Wireless Home Network Security provides the best power protection against unauthorized network intrusions by  protecting our data. Is that the best Security software for wireless networks, If there is any other software that has better a performance than that of McAfee Wireless Home Network Security. Please advice. If you can provide a comparison of price and performance that will be very helpful.

I need a demo version of "McAfee Total Protection 2013", which gives ultimate protection against malware, thieves, hackers, phishing, and other online threats. I am definitely planning to buy a premium version, before that I want to know the features and working of that, so I feel demo version will help me to understand better. If anyone has any other alternative suggestion, please advice me. My requirement is to have an ultimate protection against malware, thieves, hackers, phishing, and other online threats.