McAfee virus definitions is a great software whose work is to protect your personal computer against virus and malware threats. When you download the program from the internet, you don’t have to worry because it is simple to follow the outlined instructions for installing and configuring it properly. To download this program. Then continue and download the latest version that is compatible with whichever windows you have. After you download, click on “save” button and save it to your desired location. When saved there will be an icon on your drive or desktop double-click on it and run. Follow the installation wizard to accept the license and if need be you can read the agreement to check what it says. When you have installed and updated it well you can scan your computer for spyware, viruses etc. The main features of McAfee include update button, scanning for viruses, browser administration, and real-time reporting malware or potential threats.