How to format in ReFS after Windows Fall Creators Update? in General Posted October 21, 2017 Yup - it disappeared a couple of months back in the Betas and MS announced that ReFS format support would be limited to "Windows 10 Pro for Workstations" as well as the Enterprise version (and maybe the Education Version). Server versions of course have it. So far I've been unable to find/get/buy any of these keys to "unlock" full ReFS support. I'm hoping one of the hacks like before work or that MS make available "Windows 10 Pro for Workstations" keys for us single use users.