No bootable devices -- strike F1 to retry boot. F2 to setup utility

[lucky03]

On startup screen msg displayed No bootable devices -- strike F1 to retry boot. F2 to setup utility ...
using dell insprion 1545
hard drive working well

 

[Phillip Corcoran]

"hard drive working well"

How do you know that if your laptop won't boot from it? Have you tested it with a diagnostic utility?