Guides / Mute Windows on lock
Windows guide
Mute Windows when you lock your PC.
Automatically silence audio when you step away. Compare a dedicated utility with a Task Scheduler setup, and check what works on your version of Windows.
Choose software that supports your Windows version.Download from the publisher and check the release notes before installing an audio-control utility.
The practical option
Use a currently maintained, open-source Windows utility that explicitly supports your Windows version. Review its publisher, source code, release history, and antivirus scan before installing it. The Super User community currently points readers to WinMute as one modern option.
The built-in route
Advanced users can use Windows Task Scheduler with workstation lock and unlock events, then call a trusted local script or audio-control tool. Windows does not provide a simple built-in “mute on lock” toggle, and event-driven solutions vary by edition and audio driver.
Check lock and unlock behavior
Test the setup with audio playing, then lock and unlock your PC. Check whether sound resumes automatically and whether your preferred output device is still selected. Review these settings again if you change headphones, speakers or audio drivers.