All of the drivers are in a single cab file  [URL] Download the cab  file [URL] The AIO has a different cab file [URL]   Move it to my documents folder Download and install 7zip [URL] Open the my documents folder and Rignt Click on the cab file using 7zip and say extract here. Then go into device manager and say update drivers from my pc instead of the internet for any yellow ! in device manager.    
I have a Dell Optiplex Desktop PC.  I was having some difficulty with software issues so I reinstalled Windows 7 Professional.  The installation was uneventful and all on-board devices (audio, video, USB) were operational with one exception.  The on-board network no longer functions.  I checked Device Manager and it shows the Network device installed but no driver.  I went to the Dell download site and downloaded a network driver.  However, Windows 7 does not detect the driver. I would appreciate any suggestions on how to restore my network connection to the internet. Bob, W.
Reinstalled Windows 7 and now no network operation