galina188 wrote:
I pressed something wrong, and now the system warning sound plays when I press the spacebar. The other keys work without sound. How can I remove the space bar sound?
A SafeBoot Start up your Mac in safe mode - Apple Support will sort many anomalies
Does a quick disk repair before it fully boots up, and certain system caches get cleared and rebuilt, third party system modifications and system accelerations are disabled temporarily.
Login and test. Reboot as normal and test. Caches get rebuilt automatically.
verify Full Keyboard Access did not get turned on
>System Settings>Accessibility >Keyboard>Full Keyboard Access>OFF
Change Keyboard settings for accessibility on Mac - Apple Support