After enableing my acer acer 5515 f12 boot. it wont start at all..

[mark26]

Hello,
Hello, my acer aspire 5515 w/win.7 wont start up.my problem started when i found a screen that said enable f12 boot. Well im new to this kinda but pushed yes.Now i can hear the hd turning, dvd/cd , but my screen is black. any ideas thanks..

 

[Pyree]

This topic has been moved from the section Opinions and Experiences to section Laptops & Notebooks by Pyree

 

[benji720]

Pull the battery, unplug it, wait 60 seconds, then plug it all back in and try turning it on again.