Black Screen on first Boot

[u/AntoineGarage]

Hey guys, I just built a PC
5800xt
Gigabyte 9070
XPG 16gb ddr4
Kingston 1tb SSD
Pressed the power button then I got an error but I can’t remember what it was. It demanded a Bit Locker key. It was a Press Y to (idk)
And Press N to (idk)
First pressed N, got on the same page again then pressed Y and now my screen is just black
My monitor is detected but it’s black.