Alongside the release of a new Fast ring Windows 10 build for Insiders today, Microsoft also officially called on Insiders to help test new builds for Windows 10 S. As detailed by Windows Insider chief Dona Sarkar in the latest build notes, Insiders can install Windows 10 S and opt in for testing new builds.
Microsoft has gradually opened Windows 10 S up for testers since its initial debut. Prior to this, developers and school IT administrators could install Windows 10 S on their existing hardware with a convenient installer. Insiders can also use a simple installer to set up a clean install of Windows 10 S.
Do note that this will only work with machines that are already running Windows 10 Pro or Windows 10 Enterprise editions. Keep in mind that this will wipe your current install, but you'll be able to opt into receiving Insider builds once Windows 10 S is installed.
Updated August 23, 2017: As we've written before, Windows 10 S and the Surface Laptop could already opt in for Insider testing before this. Microsoft's latest notes provide access to a convenient installer while calling on Insiders to jump in and test Windows 10 S on their machines.
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