You can make a difference in the Apple Support Community!

When you sign up with your Apple Account, you can provide valuable feedback to other community members by upvoting helpful replies and User Tips.

Looks like no one’s replied in a while. To start the conversation again, simply ask a new question.

Level 1

8 points

Software Security update for MacBook pro 2012 and asked to restart then show this on screen and does not turn on!

Mac Pro

Posted on Apr 29, 2020 9:28 PM

Top-ranking reply

Level 10

245,435 points

Posted on Apr 30, 2020 2:25 PM

Hold alt key on startup & see if there's a boot choice, if not try CMD+r keys on startup.

View in context

Similar questions