Whenever i try and record through stereo mix, i dont get any signal.
In the recording devices, whenever music is playing, i notice only one bar is lit. It does not light up green going up and down continually. I think this is maybe where the issue could be at?
At first the sound on my motherboard messed up then i brought an external sound blaster z card. That lately messed up (i dont know how or why, now i brought a new sound which is external with a usb connection.
That’s a very old version of Audacity. Also, I assume that you are aware that Windows 7 reaches it’s “End of Life” in a few months (Jan 14th 2020), so perhaps not worth upgrading Audacity until you update your operating system. So for future reference, the current version of Audacity is always available via the Audacity website: Audacity ® | Downloads
USB devices don’t usually support “Stereo Mix”. What is your “host” setting and which devices are set for recording and playback in the Device Toolbar?