REboot and select proper boot device.

Tdriggers

Honorable
Apr 1, 2012
1
0
10,510
Hello,
My son got a computer for Christmas (4 months ago) and when turning it on the screen is black and says Reboot and select proper Boot device or INsert Boot media in selected Boot device and press a key, how do I boot the comptuer to the OS?
 
Turn on or restart your computer and watch for a message during the POST about a particular key, usually Del or F2, that you'll need to press to ...enter SETUP. Press this key as soon as you see the message.

Put the HDD first in the boot order sequence.