Windows 7 + No Audio

This applies to Windows 7 and above and MXWendler version 4.2 and above

Problem:

When there is no audio in or out, it is generally related to a non-existing audio recording device under windows 7:

Test:

Is there a default audio recording device?

If not, create a default recording device

Solution:

Open audio settings, recording devices

Right click 'Show disabled devices'

'Enable' the device 'Stereo Mix'

'Set as default' the device 'Stereo Mix'