So, I've just replaced the motherboard AND the hard drive... still telling me to select proper boot device and restart. wtf am I doing wrong?

I can't even boot from a flash drive... I've tried messing with every setting in the bios, nothing will boot from the drive. I either get a message that says to insert a boot device, and press any...

No, my fault I was on mobile and didn't see the link. Thanks for that, I believe I know how to boot from a USB through bios. I'll see if that works.

what exactly do you mean reload windows with the computer I'm using? Im using a mac book atm

No, I cant even log in. It just keeps telling me I have to restart my computer, no matter what action I take. Then when I restart i'm in the exact same place. I cant get to settings, and I...

Hi, so last night I used my computer for about 4 hrs, and it did just fine. This morning I turn it on, and it is incredibly slow starting up. It would load the screen to type my password, but...