antivirus program

Here's a really interesting question from an Infopackets.com reader: "Hey there Infopackets team, I just bought a Windows 8 PC that came with a third-party antivirus program already installed. But the subscription has already run out. I want to try ... Microsoft's Windows Defender program, but can't seem to figure out why it hasn't automatically turned on. With all you seem to know about Windows computers, I'm pretty sure you can help me with this problem. Please! Jeff G." Thanks for the vote of confidence, Jeff. Of course we can help you. Windows Defender is just a new name for Microsoft's well- ... (view more)