|Watch the POST screens at start up to see if all your hardware is being configured by the BIOS. |
Tap the Pause key once to freeze the screen so you can read it. Then tap space bar to unfreeze. Listings there should include all memory, drives, network adapters, graphics cards/chips, sound, etc.
Try just allowing the computer to set at the boot choice screen for a few minutes to see if the computer will then boot directly to standard Windows. You problem could be hardware or software. My suggestions may help determine which.