A new native NVMe storage driver has been introduced in Windows Server 2025, promising substantial enhancements in SSD performance. Enthusiastic users have discovered a method to enable this driver on Windows 11, albeit through a manual process that involves adjusting feature flags within the Windows registry. While Microsoft has not officially endorsed this for consumer versions of Windows, preliminary tests indicate that users may experience notable performance improvements under specific conditions.
The primary objective of this driver is to minimize CPU overhead while enhancing IOPS performance for NVMe SSDs. According to Microsoft, the implementation in Server 2025 could yield up to an impressive 80 percent increase in IOPS and reduce CPU usage by approximately 45 percent. However, these figures are tailored for server workloads and do not directly correlate with desktop performance.
Community testing on Windows 11 version 25H2 has revealed more tempered results. Real-world benchmarks conducted by third-party testers suggest performance enhancements in the range of 10-15 percent. While this still represents a significant boost for storage-intensive tasks, it does not quite reach the ambitious claims made for server environments.
How the registry change works
It is important to note that enabling this feature is not as straightforward as toggling a setting in the Windows interface. Instead, it requires a careful edit of the registry to activate internal feature overrides that transition Windows 11 to the newer NVMe driver. Once enabled, NVMe drives will be listed under “Storage Media” rather than “Devices” in Device Manager, signaling the successful driver switch.
Warning:
Editing the registry can lead to system instability. It is advisable to back up the registry or create a restore point prior to making any changes.
- Press Win + R, type regedit, and press Enter.
- Navigate to: HKEYLOCALMACHINESYSTEMCurrentControlSetPoliciesMicrosoftFeatureManagementOverrides
- Create the following DWORD (32-bit) values and set each to 1:
- 735209102
- 1853569164
- 156965516
- Restart the system.
Upon rebooting, Windows 11 will load the updated NVMe driver, provided that the SSD and system configuration are compatible.
Known issues and rollback
Some users have reported encountering compatibility issues with SSD management utilities, such as Samsung Magician, after activating the driver. Features for device monitoring or firmware tools may not correctly detect the drives post-activation.
To revert the changes, simply delete the added DWORD entries from the same registry location and restart the system. Windows will automatically revert to the default NVMe driver.
This adjustment should be regarded as an experimental optimization rather than a guaranteed performance upgrade. The benefits can vary significantly depending on the specific workload, and the absence of official support implies that future updates or builds could potentially disable this functionality without prior notice.
