Last night I was browsing the internet on my 2011 mac running Windows 10 OS and after I was done I put the computer to sleep. I also went to sleep. This morning I was greeted by a low volume whirring fan noise and I thought nothing of it until I tried to turn my computer on. When I pressed the power button i heard the fans but the computer would not tuen on. Ive been troubleshooting for 6 hours now, please help!