So from my work I am attempting to rescuse a 2011 Macbook. Everything seems to be working just fine, except when I first booted it up it booted into a flashing world page. I hard powered it down (held power key) and now it won't turn on. I literally have zero experience troubleshooting a Mac. Does anyone have any idea? I've tried a lot of things from Google already, but feel free to make serious suggestions. Also, please leave out the troll 'OMG IT'S A MAC IT'S SHIT" comments. I know this already. But I will not complain about getting a free one to use if I can. @Benderius @Secprotocol I know you guys are familiar with Apple.