Petexy wrote:
Hi, after upgrading my Mac to Sonoma I've noticed that there's a blue vertical bar at the right side of my screen. I tried to find out what causes it to be displayed but without any result. It stays only on desktop and never disappears, even after reboot. Can anyone help me to disable this "feature"?
https://discussions.apple.com/content/attachment/99f77dd7-dafc-466c-908e-bf5b1c8e6937
https://discussions.apple.com/content/attachment/b30d98ef-b25f-48ca-bffc-02d61f9a488c
I can not discern anything from those cropped screenshots...
Have you shut down and restarted the Mac more than once since you upgraded the macOS?
Have you tried changing the wall paper and compared your results?
What exact mac might this be?
what macOS were you running before the upgrade to Sonoma?
Does the Notification Center open as expected?
unplug all third party peripherals when testing
Uninstall all third party apps that are Cleaners/Optimizers/VPN/Anti-Virus
all known to cause issues on the macOS
To trouble shoot further you can:
—A SafeBoot Use safe mode on your Mac - 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.
Login and test. Reboot as normal and test. Caches get rebuilt automatically.
This test will tell you if third party interference; most* extensions etc are not loaded in safe boot mode.
—Test issue in another user (or guest user) account Change Users & Groups settings on Mac - Apple Support
This will tell you if it a universal issue or isolated to your user/admin account.