Windows7 Unidentified Network has been fixed already!
When you boot windows 7, local network display " Unidentified network" and "public" so that
you could not access internet. You need delete this program service:
Start -> All program -> Accessories - > run ->
Input this command -> OK
C:\program files\Bonjour\mDNSResponder.exe -remove
Restart, Should OK.
The means Bonjour not compatible with Windows 7
"The process mdnsresponder.exe is a component of the Apple Service, which is identified with the Bonjour for Windows software application initially utilized by iTunes because of its music sharing functionality. The mdnsresponder.exe process is a native element of the Mac OS X operating system and is associated with the MDNSNSP.DLL, which was ported for the Microsoft Windows Operating System environment"