my system is not starting it is asking me to insert boot device

[ilyas861]

my pc was ok with all operating system working suddenly it shutdown and asking me to reboot or insert boot device

 

[USAFRet]

Hard drive fail? Something get disconnected?

One time event, or is it still doing it?

 

[Guest]

my pc was ok with all operating system working suddenly it shutdown and asking me to reboot or insert boot device

Change your boot order for drives in the Bios. Make sure that the first drive to boot is the one you have installed the system.