Windows Server vNext Insider Preview build 29531 introduces ReFS boot, allowing you to install and start Windows Server from a Resilient File System (ReFS)-formatted boot volume for the first time. This feature brings integrity-level metadata checksums, online corruption repair, block cloning, and 35-petabyte volume scalability to the OS boot partition — capabilities that NTFS cannot match. ReFS boot requires UEFI firmware and a minimum of 2 GB for the WinRE partition. Learn how to enable Windows ReFS boot during Windows Server installation.

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