The black boot selector on a Mac Professional 2007 is a typical problem that may forestall the pc from beginning up correctly. This problem will be brought on by quite a lot of components, together with a defective laborious drive, a corrupted working system, or an issue with the pc’s {hardware}.
There are just a few alternative ways to repair a black boot selector on a Mac Professional 2007. One choice is to strive resetting the PRAM. This may be carried out by holding down the Command, Possibility, P, and R keys whereas the pc is beginning up. Another choice is to strive booting the pc into Protected Mode. This may be carried out by holding down the Shift key whereas the pc is beginning up.
