No sound after installing Win 7 x64 – Realtek audio

[rani]

Hi, I’ve just installed Windows 7 x64, updating from Windows XP x32. Most things are working fine but there is no sound coming from my PC. I get the error message "No audio output device is installed" when I click on the volume icon.
I’m running a HP website, but they don’t have any audio drivers that work for my PC. I have a Realtek sound card, but their codecs don’t do anything either. I also can’t find Realtek HD Audio Manager in the device manager.
It’s really annoying that there is no sound coming from my computer.
Thanks for your help.

[John15]

It sounds like your computer is not recognizing your sound card.
Try entering the BIOS to enable on-board audio. To enter the BIOS, reboot your computer and press the key to enter setup (usually F1 or F2).
Then look for the entry titled "enable on-board audio" and make sure it is set to enable.
When you restart your computer it should recognize your sound card and find Realtek HD audio.

[rani]

Thanks a lot. I tried everything to get my sound card to work but I never thought of this. My PC now recognizes Realtek HD and my sound is working again.