Hello everybody. I tried to install many versions of realtecs, but all for nothing, there are no versions of realtecs on my motherboard - AsRock M3A770DE.
If you did a google search, you will find that your motherboard uses the following as sound that is NOT Realtek: - 7.1 CH Windows Vista Premium Level HD Audio (VIA VT1708S Audio Codec)\\
You will need to go to the manufacturer's website (ASRock) and download the appropriate drivers from there as a start. You might be able to find more up to date drivers through Windows Update or somewhere else but at least download the drivers from ASRock for now.