Backup, Backup, Backup!īefore you proceed with fixing the problem, it is best that you back up all your data first.
But before we do that, you better have a backup of all your data. Situations like this can be very annoying, especially if you have critical and important files stored on the “unmountable” hard drive.įret not, because we will teach you what to do if your MacBook Pro won’t mount its startup disk. That means if your Mac or MacBook Pro can’t mount its startup disk, it is likely that you will experience problems, like your computer gets stuck on the login screen or it does not boot at all. Macintosh HD, or the MacBook internal hard drive, is basically the startup drive of most Apple computers.
