PC won't Power on/boot up properly

Every time I turn on my PC, I have to sit through about a 5-minute black screen saying:

"

>>Checking Media Presence......

>>Media Present......

>> Start PXE over IPv4 on MAC: (then the address) Press ESC key to abort PXE boot

.

"

(80% sure this is a problem with the hard drive)

I am fairly new to the gaming PC world, and this desktop is only a couple months old. My very limited knowledge of PCs has my brain strapped for finding a solution. There has to be a very easy fix for this.