solved : hp probook 450 g3 audio driver problem

7 10

the answer; disable Intel Smart Audio in the BIOS and then the Conexant hardware will show and you can install the driver.

In the Device Management window of your probook 450 g3 , uninstall the audio card -

Launch from the window " device management " looking for new devices

Go into the BIOS> Advanced >and make sure that Intel Smart Audio is not selected. Restart, reinstall