I'm trying to play Guild Wars 1. Now I updated my Windows 10 to newest version and when I try playing GW1, it only gives me windowed mode and doesn't even go full screen. Graphics settings only give one resolution option and it's "window". Reinstalling GW doesn't help. I also tried running as administrator but it won't help. Using compatibility mode doesnt't help either. Any ideas? Thank you.
P.s. It seems the game is using directx 8 now. It used to be 9 when it was working fine. My computer has directx 12.