A laptop I own recently gave me this "REBOOT AND SELECT PROPER BOOT DEVICE OR INSERT BOOT MEDIA IN SELECTED BOOT DEVICE" error, along with telling me to press any key. I had no idea what to do, so I searched up a fix online and found a youtube video telling me to reboot the device, go into BIOS settings, and restore the BIOS settings to default. I saved changes and exit, but now the original error message doesn't appear, and the laptop instead is booting to the BIOS. Not sure what to do. The only noticeable changes were 1 boot option missing after I restored default settings, which is the CD-ROM drive, not sure if that's important. The main hard disk drive is still the #1 boot option which remains unchanged.