Trouble booting 960 evo

[MaxPlaysGames]

Hey, so im trieng to install W10 on my 960 evo.

 

weirdly it doesnt show up on my crosshair 6 bios sata information M.2 but maybe thats because its no sata M.2

 

it does show up under nvme config

 

now i cant boot from it, apperantly windows 10 is also installed on it and everytime i try to delete it and reinstall it tells me bitlock is on there

 

its my first Build and im kinda panicing now