On a Running 64 bit programs on a 32 bit system answer there's this screenshot:

Windows 10 Setup

What does the installer do if you select Both as architecture?

I don' think there's any way of having a both x86 and x64 system - without it being an x64 system itself. The alternative could be installing two OSes - but I don't see how can a single installer do both and still have a decent UX.

  • As I read the link, the selection screen you quote appears during the creation of an installation disc, not the installation process itself. It is perfectly possible (and quite common) to have a single installation disc capable of installing either architecture.
    – AFH
    Nov 16, 2015 at 0:11
  • That just creates a universal .ISO
    – Ramhound
    Nov 16, 2015 at 1:33
  • Why the downvote? Nov 16, 2015 at 1:36
  • 1
    @mgarciaisaia some folks are just mean. I've up-voted, nothing wrong with the question.
    – misha256
    Nov 16, 2015 at 4:35

1 Answer 1


AFH is correct. This screen is for the Microsoft Windows 10 Media Creation Tool. It will either prepare an ISO or a USB device with the installation files capable of both the 32bit and 64bit architecture. Of course if you choose both this will create a larger ISO file or take up more space on your USB device.


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