sound cards configuration

Hi,
I’ve connected a external soundcard “steinberg UR22” in USB and connected amplified speakers. Everything is ok with this. I can hear everything and recrd all the instrument.
My problem is that since i’ve disconnected the speakers from the integrated sound card realtek of my PC, i’can’t record anymore the sound of my PC with Audacity.
The soundcard realtek is activated ad appears in audacity.
Please, helppppp
thx

The “WASAPI loopback” method described here should work: Tutorial - Recording Computer Playback on Windows - Audacity Manual

Hi steve
thanx for your answer, it works now ! greaaaaaat
Bye !