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Explore storage features in Windows Server 2025. We'll showcase exciting new capabilities in the ReFS file system, software-defined storage with Storage Spaces, innovation in Storage-spaces Direct (S...
Char_Cheesman
Updated Dec 27, 2024
Tina_Wu's avatar
Tina_Wu
Former Employee
Mar 26, 2024

Hi Karl, ReFS Deduplication & Compression is not related to the existing Windows Server deduplication. Therefore, users will have to disable any existing deduplication on the volume and enable the ReFS based solution using PS or WAC. We will look into adding the new ReFS deduplication into Server Manager in a future release.  

Karl-WE's avatar
Karl-WE
MVP
Mar 26, 2024

Thank you Tina! So recap, as of now Server Manager will use the previous Dedup.
Using the latest Dedup requires the new PowerShell commandlets or Windows Admin Center and the minimum requirement on the OS (Windows Server 2025 and Azure Stack HCI OS (vNext)