The black boot selector on a Mac Professional 2007 is a standard concern that may stop the pc from beginning up correctly. This concern could be brought on by a wide range of elements, together with a defective exhausting drive, a corrupted working system, or an issue with the pc’s {hardware}.
There are just a few other ways to repair a black boot selector on a Mac Professional 2007. One possibility is to attempt resetting the PRAM. This may be carried out by holding down the Command, Possibility, P, and R keys whereas the pc is beginning up. An alternative choice is to attempt booting the pc into Secure Mode. This may be carried out by holding down the Shift key whereas the pc is beginning up.
