why is my mac stuck on the start up screen
Im using the HIGH SIERRA in a MAC DESK TOP and just lately it gets stuck half way de loading bar does anyone know whats causing it.??
thanks
iMac 27", macOS 10.13
Try a SafeBoot https://support.apple.com/en-us/HT201262
Takes noticeable longer to get to the login screen, does a 5-15 minute disk repair before it fully boots up, and certain system caches get cleared and rebuilt, including dynamic loader cache, etc.
See if this will get you to the login ...