https://www.bleepingcomputer.com/news/microsoft/windows-10-audio-not-working-after-installing-latest-windows-updates/

Lot's of reports are coming in that Windows 10 users are finding that their audio is no longer working on their computer after installing the latest Windows updates.

Windows Updates have become a complete mess lately, with the latest October 2018 Update deleting user's files, Patch Tuesday updates causing crashes because of incompatible keyboard drivers, and now users are finding that their audio drivers are broken.