No audio device or taskbar icon, help?

Registration date
Monday June 24, 2013
Last seen
June 24, 2013

Recently and suddenly, my laptop: Windows Vista Home Premium on an old Compaq Presario, 2007. 32-bit, started to show the no audio devices installed message. And I've tried a lot of different things. Unfortunarely, following the steps to end up on the device manager to Sounds, Video and Gaming.. it doesn't show that option. So, I've done the device re-install following directions from the HP website, figure 2:

I've restarted the laptop and I still don't have sound and now I'm missing the icon in my taskbar and has done one or two very loud "button" noises upon pressing something invalid.

Thank you for your help!