Installing MC 14 with Windows 10

My computer died and I am trying to re-install Mathcad 14 with Windows 10. I am getting many error messages (many for help files which seem to be where they are supposed to be but the install program cannot find). But the error I could not get past was

ERR 1904.Module

C:\Program Files(x86)\MathCad\MathCad14\mcformsr.ocx failed to register HRESULT-2147220473

Any help would be appreciated.