Audio Playback and Recording Blank on Setup

Windows 10 recognizes my sound device - I play music and record from a microphone. Audacity doesn’t recognize anything.

Use Audacity 2.1.1 from Audacity ® | Download for Windows.

If you upgraded the same machine from previous Windows make sure you go to the web site of the computer manufacturer and obtain the latest Windows 10 drivers for your specific computer model. This page has lots of useful information Windows 10 OS - Audacity Wiki.

Choose your recording input in Device Toolbar. If Device Toolbar contains no devices, enable devices following the steps at Missing features - Audacity Support .