getting sound working in virtualbox guest windows 7 – no audio output device is installed

to get the sound working start up windows 7 and download the realtek AC’97 sound driver to your desktop. therefore click on the following link, accept and click ‘next’ and download the very first driver “Vista/Win7 (32/64 bits) Driver only (ZIP file)” from any mirror …

http://www.realtek.com.tw

and extract it by right-clicking and selection “Extract All…”

getting sound working in virtualbox guest windows 7 - no audio output device is installed

select “Extract” on the next screen and wait for the file to be extracted.

getting sound working in virtualbox guest windows 7 - no audio output device is installed

when it is done click on the “Start”-Button and right-click “Computer” and select “Manage”.

getting sound working in virtualbox guest windows 7 - no audio output device is installed

the computer management console opens. select “Device Manger” in the left tree.

getting sound working in virtualbox guest windows 7 - no audio output device is installed

on the right side you should now see a device with a warning sign named “Multimedia Audio Controller”

getting sound working in virtualbox guest windows 7 - no audio output device is installed

double-click on that and select “Update Driver…” in its properties.

getting sound working in virtualbox guest windows 7 - no audio output device is installed

choose “Browse my computer for driver software”

getting sound working in virtualbox guest windows 7 - no audio output device is installed

and click the “Browse…”-button in the new window

getting sound working in virtualbox guest windows 7 - no audio output device is installed

select the lately extracted folder and click on “OK”

getting sound working in virtualbox guest windows 7 - no audio output device is installed

make sure the option “Include subfolders” is checked and confirm the step by clicking on the “Next”-button.

getting sound working in virtualbox guest windows 7 - no audio output device is installed

confirm the windows security popup by clicking on “Install this driver software anyway”

getting sound working in virtualbox guest windows 7 - no audio output device is installed

and wait for the installation to finish.

getting sound working in virtualbox guest windows 7 - no audio output device is installed

you now have sound in your vm.

beep on suspend hibernate

lately i was wondering why my laptop was beeping when going to hibernate or suspend mode .. it turned out that i decreased the volume pushing the volume-minus button until (i thought) it would be mute …

but you have to push the mute button to mute the laptop .. minimizing the volume does not result in mute (like in windows) but beep sounds …