If the Windows Audio Service needs to be restarted manually at login to get the sound back, you can try the following suggestions to fix the issue.

The Windows Vista startup sound continues to lurk within Windows 11 As spotted by XenoPanther on X, the Windows Vista noise has made a return in Windows 11's Canary branch.

Complete guide on how to improve, change, reset or manage Sound settings, choose speakers in Windows 11 for better audio.

If you use one of the recent Windows 11 preview builds, you might have noticed a different startup sound. As it turned out, Microsoft accidentally replaced it with the old-school Windows Vista jingle.

A new Windows 11 bug spotted on the latest Insider Preview Build causes the OS to play the startup music from Windows Vista instead of Windows 11.

Elsewhere, other fixes include an issue that was causing the Windows Vista boot sound to play on start up instead of the correct Windows 11 sound, and some niggles with File Exporer.

Microsoft has temporarily transported users back to 2007 this week when the company mistakenly swapped Windows 11's familiar startup chime with the iconic Windows Vista boot sound.

Let's ignore the nature of the bug itself, which is a bizarre one for sure, and just focus on the fact that Windows 11 has the Vista start-up music in it.