PC auto-enters BIOS setup

After shutting down my computer one day as I would normaly do. The next morning I go to turn it on. I walk away to leave it to chugg up .. come back and I'm greeted with the Setup BIOS screen. I think ... odd. Shut down and restart.

The same thing happens again...
I try again this time watching closley

I get the Motherboard splash screen... and it says press Del to enter setup. I dont press anything and nothing is leaning on the keyboard. And again it enters setup.


I've checked the hard drive. So its not a hard drive failure. ( Tried it on a different computer )

Any suggestions?

Many thanks

 

Still the possibility that the "DELETE" key is stuck. Have you tried a different keyboard, or is it a laptop? You neglected to give any information.