Installed Windows 10 on an SSD, but the PC cant boot from it

So I built a new PC, installed windows on it and after downloading some software turned it off for the night. Now when i turn it on it prompts me to install windows AGAIN as if i hadn't already installed it. I have tried almost everything on the boot menu, removing the USB i used to install windows doesnt work, just asks me to install a valid boot device and restart. Any ideas?

EDIT: Solved, as a last ditch effort switched the boot mode? to uefi from legacy+uefi. Hopefully this helps others.

Submitted December 31, 2017 at 03:36PM by w3doe http://ift.tt/2CojGc4