how to conclude the erase my computer process

Press and hold the power button and it should turn off in about 5-10 seconds

alvilda wrote:

I have followed all the instructions to erase my computer before sending it in, and now it doesn't turn off, but is stuck with a startup disk window. What to do?

Important: You can force a shutdown if necessary—for example, if your Mac becomes unresponsive—by pressing and holding the power button until your Mac shuts down. You may lose unsaved changes in open documents.



Log out, sleep, wake, restart, or shut down your Mac - Apple ...