I upgraded my win7 home to win7 professional and now i cant hear any sound it says no audio device is installed i searched a lot but i couldn't find it when i try to click scan for hardvare changes it searches and says (code 10) i dont know what that means i tried to reinstall realtek dont work
my pc: processor amd sempron 2800+
video card:nvidia geforce 5200 fx
ram: DDR 400
motherboard:K8T Neo-V 1.0
Mich that is quite an old board mate and I am assuming you have installed a 32bit OS now I have had a look for a driver for the audio but can only find drivers up to one for Vista 32bit. Now I can only suggest you try that driver and see if it works.
The Windows driver update is not a favourite of mine to be honest and always download from the manufacturers of the board or the manufacturer for that particular audio brand.
One other Desktop (tester) and spare Toshba laptop both with SSD's
Running Kaspersky 2016 ISS on all machines config'd identically
Logitec audio stereo systems on each machine (x3)
Canon MG5250MFC
Router/modem TP-Link running WPA2SK
if you find the drivers for windows vista or XP then try to install the drivers in compatibility mode. you may create a restore point before the installation. if this doesn't work then look for device ID and vendor ID of the sound card and you may post it here