Audacity does not see audio devices

v 2.4.2 does not see the audio device. When starting, it writes an error:

Audio initialization error
Could not find audio devices.
You cannot play or record sound.
Error: Internal PortAudio error
The program window opens, but in the settings for selecting the audio device, accordingly, the empty drop-down menus.
The computer is in order, all other programs are playing, even version 2.3.3 of the subject works.
What could it be?
Win7 x64

I have exactly the same problem (windows 10 pro 64 bit) and have had to revert to audacity 2.3.1 which works fine.
I am sorry for you but pleased that I am not alone!

If you are using a branded computer, try installing the latest drivers from the manufacturer’s website.

I have done that Steve - please see our previous discuss.