Do you have to be on Windows 10 to create HoloLens Unity apps?

Hi there - I have successfully created Hololens holograms in Max, imported them into Unity, exported to VS and then into our HoloLens (not the emulator) - works 100%. On a windows 10 machine.

Now we are ramping up development and I am developing on a windows 7 machine - but when I try to Build, Unity states “You have to use Windows 8 or greater for this build”.

Why is this? Surely if I am using the Win 10 sdk it should not matter what machine/OS is doing the wrapping as long as the wrapped item has the correct code to interface with the HoloLens??

Am I missing something here?

thanks

Everything I have ever seen from Microsoft, in this regards, has stated that Windows 10 is a requirement for HoloLens development.

You need Windows 8.1 or later, as explained in our system requirements page:

https://unity3d.com/unity/system-requirements