Problems using Audacity and Wasapi

Hi, I would be very grateful for your help. My new laptop presents me with problems using Audacity - Microsoft Surface 2 laptop. I had previously used the software on my old HP laptop. This had the option of a Stereo Mix (High Definition Audio) driver. The new one only has a microphone array driver which picks up external noise.

After much googling I read about the Wasapi/closed speaker loop option and used this on my new laptop. After a couple of test recordings it suddenly stopped working. Any thoughts? Not sure if I clicked on something. I press the record button but it doesn’t record although it will if I change settings. It seems as if in this set up it is not picking up an active signal.

Many thanks


Which version of Windows is that running?