check your sound settings in windows control panel. upgrades are notorious for changing them. i'll bet that's what it has done. are you using on board sound or a sound card?

i find control panel easier to use than the settings gear wheel in windows 10.

bottom left in the search box enter control panel. open the control panel and click the sound icon (a loudspeaker). then select the playback tag and see if your default device has changed or been disabled.