I have a laptop running Windows 8 and a desktop running Windows 7. There are two user accounts on my desktop (mine and my wife's) and one on my laptop (mine). When I first set up a Homegroup, File Explorer on the laptop lists all three user accounts under Homegroup. (On the desktop, though, in each user account only the laptop and the other user account are listed under Homegroup in Windows Explorer.) After a day or so my wife's account disappears from the Homegroup listing on both computers for no apparent reason. She can still share files, however, so must still be in the Homegroup. I have tried leaving the Homegroup on both computers and setting up a new Homegroup but the same thing happens. Does anyone have any idea why this should be happening? Thanks in advance for any help.