Windows Task Scheduler allows you to run scripts at a specific and predetermined, time though it doesn’t offer an option to mute your machine. Unfortunately, out of the box, there’s no way to do this without third-party tools.  For this task, we’ll use MultiTimer, a free and trusted third-party app that allows you to set up mute times for a specific hour that silence your machine. There are other options too, like shutting your monitor off at a specific time or displaying a countdown timer to shutdown. 

Install the app

  1. Download MultiTimer app from https://www.kifoth.de/jane/misc/#MultiTimer 
  2. When the download is complete, click on the executable file.
  3. Click Open to launch the installation wizard.
  4. In the Windows warning window, click Run anyways.
  5. Read the license agreement and click I Agree.
  6. Check the location of the installation folder and click Next.
  7. Click Install to continue the process.
  8. When the installation is complete, click Next.
  9. Click Finish to complete the installation and launch the app.

MultiTimer settings

  1. In the Multitimer window that opens, go to the Regulary tab.
  2. Select a day from the existing list. You can also add a new date and time combo or edit an existing combo.
  3. Open the Sound drop-down menu to assign an action.
  4. Select Off in the Sound menu to mute Windows.
  5. Open the Execute dropdown menu to make the settings executable.
  6. Select Yes from the menu.
  7. Click Apply to confirm the schedule and settings added so far.
  8. Click Go to start the scheduler for the tasks you added till now.