I just upgraded from a trial version of XP pro to Windows 7 Ultimate N. When I started Windows 7 my Realtek High Definition Audio doesn't work. Windows 7 says that my sound driver is High Definition Audio Device from Microsoft Windows. I have look at the Bios, uninstall the driver from Device Manager, turn off my Ati hdmi output and the computer still can't find the Realtek Driver that is installed.
My computer has a Gigabyte Technology 8I945GMF
Intel Pentium D