When I turn on my MacBook Pro 15" I now get the apple logo in red and green stripes and the progress bar is also red and gets stuck halfway. I've tried resetting the NVRAM and the PRAM but that doesn't make any difference.
When I turn on my MacBook Pro 15"2012 I now get the apple logo in red and green stripes and the progress bar is also red and gets stuck halfway. I've tried resetting the NVRAM and the PRAM but that doesn't make any difference. I've tried holding down the option key on start up, I chose my back up HD but that doesn't make any difference either,everything still has these faint red lines across the icons and then the screen goes blank. Please help!