Apple’s Worldwide Developers Conference to kick off June 10 at 10 a.m. PDT with Keynote address
The Keynote will be available to stream on apple.com, the Apple Developer app, the Apple TV app, and the Apple YouTube channel. On-demand playback will be available after the conclusion of the stream.
The Keynote will be available to stream on apple.com, the Apple Developer app, the Apple TV app, and the Apple YouTube channel. On-demand playback will be available after the conclusion of the stream.
I quit and restarted choosing start up disk Macintosh MAC OS 10.13.6 but the problem keeps repeating every time I use the mac.
Also constantly getting message Safari Bookmarks sync, agent quit unexpectedly.
iMac 21.5", macOS 10.13
Have you downloaded the installer and you are in the process of trying to install the upgrade? Try booting into the Safe Mode to see if it will install. If that doesn't work, please provide more details about what you did to get where you are seeing this message.
Have you downloaded the installer and you are in the process of trying to install the upgrade? Try booting into the Safe Mode to see if it will install. If that doesn't work, please provide more details about what you did to get where you are seeing this message.
Mac OS cannot be installed
