DX11 Feature Level 10.0 Required Error after updating to 4.5.1

I’ve been using UE4 on a few different computers, and now that I’ve updated it to 4.5, it no longer works on my laptop. The laptop meets the minimum specs, and it has been working fine in previous versions. Is there anything that can be done to fix this?

I’ve set my NVIDIA 3D settings to prefer the graphics card (GTX 870m), as stated in an earlier post about this error message.