Blog Post

Screenshot of higher IOPS when running Native NVMe stack on Windows Server 2025.
Windows Server News and Best Practices
5 MIN READ

Announcing Native NVMe in Windows Server 2025: Ushering in a New Era of Storage Performance

Yash_Shekar's avatar
Yash_Shekar
Icon for Microsoft rankMicrosoft
Dec 15, 2025

Native NVMe support in Windows Server 2025 is a leap forward in storage innovation that will redefine what’s possible for your most demanding workloads. Enable Native NVMe today using a registry key after applying October’s latest cumulative update for WS2025!

We’re thrilled to announce the arrival of Native NVMe support in Windows Server 2025—a leap forward in storage innovation that will redefine what’s possible for your most demanding workloads. Modern ...
Updated Jan 05, 2026
Version 2.0
NVME SSD
storage
windows server
Hans Odink's avatar
Hans Odink
Copper Contributor
Dec 21, 2025

I did enable it on my HomeLab server running Windows Server 2025 Datacenter, after the restart it was really quick also the VM's (running on (Hyper-V) where responding much better. Allthough after les then 15 minutes the VM's ran into BSOD, and would not boot succesfully.
Rolled back the change, and restored backups of the VM's. All running like it should. 
I suspect that it has something to doe with Data Deduplication which I have enabled on the NVMe disk where the VM's are stored.

Elden_Christensen's avatar
Elden_Christensen
Icon for Microsoft rankMicrosoft
Jan 05, 2026

Which Deduplication solution are you using?   The newer ReFS Dedup or the older Data Dedup? 

  • Hans Odink's avatar
    Hans Odink
    Copper Contributor
    Jan 05, 2026

    I suppose it is the older Data Dedup, because it was enabled on a the server when it was an older version (I suppose enabled on W2019).
    Is it possible to determine it? And can it be converted?

    • Yash_Shekar's avatar
      Yash_Shekar
      Icon for Microsoft rankMicrosoft
      Jan 08, 2026

      Hi Hans Odink​, would you mind sending more detailed repro steps and any stop codes or screenshots that might be relevant to nativenvme@microsoft.com? We would love to investigate further. Thanks!