My acer aspire 10 wont load past black screen

my laptop locked up, so i rebooted it and then when I turned it back on it would not go past the logo screen. I followed another thread on here and it had me change my primary boot to hdd, but that just made my laptop go to a black screen that says no bootable device insert boot disk and press any key.

It will not even let me use the Alt+F10 to get to the blue screen....help please!!! I bought this laptop for my wife and she has not even been able to use it yet!!