I have a Dell Notebook with Windows 7 64 bit OS. I was trying to install Skype but I failed. I de-activated McAfee Anti Virus and Skype started to work. Could you please tell me if McAfee supports Skype? I have heard that instead of de-activating I can select option to add Skype to exclusions list. How to do that? I can't keep my Notebook without Anti-Virus. Or can you provide me the list of anti-virus apps which are compatible with Skype?