All previous builds worked fine for me, still do in fact. But this one not so much... First I had a missing *.dll; xinput1_4.dll, but after downloading it, an error pops up with the code 0xc000007b. I did everything I found on the net to try fix this problem but with no success. Anyone got around that? What I did so far:
-GPU drivers up to date
-Windows (7, x64) updated
-Framework reinstalled
-DirectX reinstalled
-Visual C++ Redistributable reinstalled
-Re-downloaded the game
-Installed the UE4PrereqSetup_x64
Edit: Nevermind, I just noticed the Windows 7 workaround on the very first page. I'm not entirely sure if I didn't see that before or it wasn't there and got edited in, but it worked!