I just downloaded the latest version of UE4 and it gets me an error that it needs a feature level 5 video card so which UE4 won’t get me that error? Also at dxdiag on windows tells me that I have DX11
UE4 use DX11 by default and Shader 5.0 is part of DX11 feature set, if doftware dont see it then i mens something is not right with Drivers or GPU it self. Can you provide logs from Saved/Logs from your project, RHI logs initiation information there and it should expose origin of problem.