Recently had a user who got a D3DD11 error, there might be a workaround you could figure out by tweaking the various settings files, though. If you want it to run natively, you're gonna need DX11.
Thanks for the reply, I recently thought of a solution though. I might be able to install it on my USB at home and then drag and drop the DirectX 11 files onto the computer I use. If that doesn’t work, my system administrator should be fine with installing DirectX 11 for me, since we can use it for other programs too.