Home network ... W8-64, W7-64, W7-32 machines involved. Visitor to house brought his MAC and we added him to the network to do some file sharing. He is gone ... yet, MAC remains on network. Cannot figure out how to get it off network. MAC shows up in Windows Explorer on all three of my machines. See picture at link. Can anyone help me with this? Thank you in advance,
https://www.dropbox.com/s/b5j6noukbzk6um0/Capture.PNG
https://www.dropbox.com/s/b5j6noukbzk6um0/Capture.PNG