My Mac shows “error in installing macOS “ and won’t open
My Mac shows “error in installing macOS “ and won’t open. Do I need an external start up disk?
annettebe wrote:
My Mac shows “error in installing macOS “ and won’t open. Do I need an external start up disk?
What exact Mac?
What macOS are you cirrently running?
What are you trying to install?
Do you have adequate free storage space on you drive?
Did you try from a 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. Login