Green screen and saids restarting when I turn on. HELP?!?

  HER8 20:59 03 Jan 13

When i turn on my computer i get the circle scrolling round next to restarting and on a green background, before I turned off my computer I clicked shut down, and there is plenty of battery. What's gone wrong?

This thread is now locked and can not be replied to.

Apple Event live stream | Apple October Event live blog: Watch Apple unveil new MacBook Pro, new…

1995-2015: How technology has changed the world in 20 years

Lida designs a cross-stitch email sent to thousands of Ikea Family members

Apple Watch 2 review | Apple Watch Series 2 review: Faster performance, a brighter screen, water-ret…