Can't open MRtrix GUI from unix command prompt

I’m afraid this is a tricky one to get working. The only reliable way of getting mrview to work on Windows currently is to use MSYS2, as recommended in our installation page. But you can get mrview to (mostly) work via WSL and/or remotely, though it will require a lot of trial and error, and is not something that we can provide support for at the moment, unfortunately.