Ive had my PC for 5 weeks. I have Windows 7. Yesterday, after instaling/applying new updates a prompt came up on the screen after I booted up. It was a prompt, asking me to select which network I wanted to connect a Home Group to. I selected Public of course, as I am the only PC in my home. Actually, I am the only computer in my home. I do not have a wirless. Also, my internet cable is connected directly into my modem. The cable box outside is locked, so I know no one is stealing my cable service. And Im not on a wireless. So, why did Win 7 detect I am on some sort of network with other computers, and suggested I start a Home Group? This makes me thinking somone has hacked/intruded upon my connection.