On your Chromebook, click the status section found in the bottom-right corner to reveal the quick settings panel. Select the gear icon to enter your Chromebook’s Settings menu.
Scroll down until you find the “Advanced” button and toggle it to reveal more options.
Locate the “Accessibility” section, and from under that, head into “Manage Accessibility Features.”
At the bottom of this page, find and switch on the “Play Sound on Startup” option.
In case you’re facing trouble reaching this exact menu, you can look up the option’s name from the search bar at the top of the Settings menu instead.
That’s about it. Now your Chromebook will play a brief startup chime at the login screen whenever you boot it up from a complete shutdown. Do note, though, that it won’t ring when you are simply waking it from sleep.
The chime’s volume depends on your Chromebook’s audio levels. Therefore, if you wish to mute it or make it less intrusive, all you need to do is turn down your Chromebook speaker’s volume before turning the computer off.
Alternatively, with the help of the Startup Sound for Chromebook Chrome extension, you can also set the startup chimes of other operating systems like macOS and even Windows XP.
Once you have it installed, click its icon from the extensions tray in the top-right corner on Google Chrome.
Pick a startup sound from the dropdown list, then hit “Save.”
Unlike Chrome OS’s built-in startup sound, this extension’s chime will trigger once you’ve logged into your Chromebook.