The one thing you learn is to stop fixing what works and NEVER ACCEPT drivers from Microsoft (a common reason for feature loss.)
I would google " "This computer cannot connect to a Homegroup" message and see what folk write. My suspect is a firewall.
Join Date: May 2011 Windows 7 ultimate x64 2 posts
cannot install wireless printer
Have a wireless Lexmark printer for three computers, (His, Hers,
Laptop). All were working great. I set up (tried) Homegroup. Piece of
cake for Hers and Laptop. His gets "This computer cannot connect to a
Homegroup" message - another problem. Hers tried to do 2-sided printing,
used to work great but could not now. I noticed that the printer on
Hers was now named Laptop. We only use the Laptop for traveling. So I
removed Laptop printer on Hers and tried to add the printer. Now I
cannot add the printer, it tries, gets to the "installing printer popup
and hangs forever with no CPU usage. I cannot cancel. The only way to
go on is to restart. Have tried the following all without success.
Deleted the printer and the printer drivers. Installed the drivers from
DVD. Tried to add printer. Hangs as described above. Plus tried
everything else I could think of, removing printer, adding printer,
etc.. Also would not install as a USB wired local printer. Help! & Thanks. Printing works AOK from His.