hi my daughters packard bell easynote m5255 wont start up when i turn laptop on it just goes onto a screen that says' boot device' if i press enter the page stays on but nothing happens if i press f2 or f12 it keeps going back to this screen so cannot get it to start up any ideas !!!!! cheers

Starting on page 40 in the manual is the Recovery Program via F11:

Documentation - Packard Bell User's Guide - 6907170201 - Downloads - EASYNOTE M5255 - 270904360122 - EasyNote M5 series - platform_Gharial_N - Notebook