On my screen, that bar is completely gone?
Is that a bug or a new update?
That happened to me too. In my case it was a combination of the most recent Windows Update (KB5029263) and running ExplorerPatcher (third-party tool) to get a Win10-style taskbar. If you use ExplorerPatcher, this might also apply to you. A discussion of this is on two "issues" on Github:
- https://github.com/valinet/ExplorerPatcher/issues/1772
- https://github.com/valinet/ExplorerPatcher/issues/1692
Both threads start out with a lot of chatter about unstable preview updates, but if you scroll down on either or both, you'll see that some people (including me - I'm "OsakaWebbie" on the first thread) have the problem without installing any previews.
So if you're running ExplorerPatcher, this might be your issue, too.
I uninstalled KB5029263 and when Windows Update tried to install it again, I paused updates for a week. For some unexplained reason (which makes me happy) WU says it's paused until 9/19 (over a month) instead of just a week - that will give ExplorerPatcher's developers more time to fix it (or perhaps Windows will have another update that fixes it). If it's not fixed by then, I'll either try the suggested workaround (installing a utility from the MS store called ModernFlyouts, which otherwise does nothing, because the "modern flyout" it would create is the one we're stuck with now - the main topic of this thread!) or just live without the volume bar. I'm not willing to give up on the main reason I use ExplorerPatcher's Win10 taskbar, which is to be able to put the taskbar on the side of the display instead of the bottom - the ability to move the taskbar is yet another good feature that was mysteriously removed in Windows 11.