Windows 10 - speakers, microphone, and camera stopped working

Issue

Speakers, microphone, and the camera suddenly stopped working in all apps on Acer Swift laptop running Windows 10 Home. Devices also not seen by Windows built-in apps and settings, but present in Device Manager.
Reinstalling devices in device manager doesn’t help. Windows Privacy settings is not an issue. Rebooting laptop doesn’t help either.

Windows Audio troubleshooter reports that audio service is not running.

Windows 10 audio troubleshooter

Resolution

The issue was caused by an incomplete / failed Windows update. Re-running the update manually and rebooting the laptop fixed the issue.

January 2019
Windows 10 Home (1809)

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