By default, Windows 10 and 11 make a boot sound (ding?) whenever they start up. This is annoying when you are half asleep and turning on your computer. Also, if you are in a public place and don’t want the planet to know you are booting up your laptop, like in school or a hotel when the rest of the family is asleep.
To silence Windows startup noise follow these quick and easy steps.

1. Click in the Search for “system sounds,” and click “Change system sounds”.
2. In the Window that appears, uncheck the box next to “Play Windows Startup sound” in the lower left area.
3. Click OK to complete