

If you are fortunate enough that the MacBook won't turn on but you can see the loading bar or any startup screens, you are going to fix the boot problems with the following ways. In most cases, Mac hard drive not booting can be caused by one or more of these, such as problems with the computer's PRAM, corrupted startup disk directory or file system, damaged or deleted Mac operating system files, disk or computer hardware issues. Reasons your MacBook Pro won't boot from internal Mac hard drive
#HOW TO CHOOSE BOOT DRIVE MAC OS CLASSIC FOR MAC#
Let's start with the reasons for Mac hard drive not booting and then check solutions one by one. To be frank, when Mac keeps crashing and refuses to boot from the internal hard drive, you can fix it either with or without an external bootable device.


Though booting the MacBook Pro from an external hard drive is a feasible way, there are some limits as well. Is your MacBook Pro/Air, iMac, Mac Mini not booting up after the latest macOS update? Or you see the Apple booting loop or a black, gray screen of death? If so, your Mac won't boot from the Mac internal hard drive for some reason. I heard that I can boot my Mac from an external hard drive or using USB drive to startup it. Hi, my MacBook Pro had a problem, someday it ran extremely slow, and I restarted it, when it was booting the little Apple turned into a circle with a slide cross and then into a folder.and then into the Apple.and so many times.I tried everything but nothing works.
