Ok, i have a Acer Aspire V5-571PG laptop running windows 8. It froze on the Windows store, so i turned it off and on. BAAM! 'Operating System No Found'. I've checked the bios and the harddrive is listed in the boot order, so its not the bios i think. i've tried booting from a CD and that didn't boot. I've tried using that 'Acer eRecovery System', Held Alt and spammed F10. Nothing happened. i don't want to reinstall windows 8, because i don't have a copy. Any Ideas?