Windows Store Module link broken - Unity 5.3.4 f1

I want to build my project for Windows Phone 10.
I go to File → Build Settings … → Windows Store

It will tell me “No Windows Store Module loaded”.
I click on the button “Open download page”.

It tries to open the URL

http://download.unity3d.com/unity/fdbb5133b820/TargetSupportInstaller/UnitySetup-Metro-Support-for-Editor-5.3.4f1.exe

This is broken and does not work.
Same behavior on Windows 7 and Windows 10.

http://download.unity3d.com/download_unity/960ebf59018a/TargetSupportInstaller/UnitySetup-Windows-Support-for-Editor-5.3.5f1.exe