NVMe driver

Winsage
March 23, 2026
Microsoft has disabled a registry modification that allowed Windows 11 users to activate native NVMe support. This change was noted in the latest Insider builds of Windows 11. The registry trick had previously improved random write performance by up to 85% and enhanced random I/O across various drives and CPUs. However, it caused compatibility issues with third-party SSD management tools and could trigger recovery prompts from BitLocker. Users can still enable native NVMe support using a third-party utility called ViVeTool, which requires an elevated command prompt and a system reboot. The timeline for official native NVMe support in Windows 11 versions 25H2 and 26H2 is uncertain.
Winsage
March 11, 2026
Microsoft's native NVMe driver, initially released for Windows Server 2025, is now available for Windows 11, enhancing SSD performance. Users can achieve performance gains through registry tweaks. Benchmark tests showed significant improvements in random read bandwidth and input/output operations per second (IOPS). In a test with AMD EPYC 9754 processors and Solidigm P5316 SSDs, the following results were observed: - 4K Random Read: Non-Native Driver 6.1 GiB/s, Native Driver 10.058 GiB/s (+64.89%) - 64K Random Read: Non-Native Driver 74.291 GiB/s, Native Driver 91.165 GiB/s (+22.71%) - 64K Sequential Read: Non-Native Driver 35.596 GiB/s, Native Driver 35.623 GiB/s (+0.08%) - 128K Sequential Read: Non-Native Driver 86.791 GiB/s, Native Driver 92.562 GiB/s (+6.65%) - 64K Sequential Write: Non-Native Driver 44.67 GiB/s, Native Driver 50.087 GiB/s (+12.13%) - 128K Sequential Write: Non-Native Driver 50.477 GiB/s, Native Driver 50.079 GiB/s (-0.79%) Random read latency decreased significantly, with 4K and 64K read times dropping by 38.46% and 13.39%, respectively. However, 64K sequential write latency increased by 39.85%, while 128K sequential write latency rose by 12.43%. The NVMe driver also showed favorable CPU usage results during sequential read and write operations. It is not enabled by default in Windows 11, requiring users to make registry changes to activate it.
Winsage
February 14, 2026
The x86 architecture allows users to run operating systems from the 1990s on modern hardware. Yeo Kheng Meng successfully booted Windows 98 SE on a 2020 ThinkPad P12s Gen 1 alongside Windows 11 and Linux from a single NVMe drive. He previously ran MS-DOS 6.22 on a 2020 ThinkPad X13. The main challenges included UEFI complexities and the need for compatible hardware drivers. Both ThinkPad models support UEFI-CSM mode. To address the lack of xHCI support in Windows 98, Yeo used a USB 2.0 expansion card through a Thunderbolt dock. The installation involved disabling Secure Boot, enabling UEFI-CSM, activating Thunderbolt BIOS assist mode, and turning off Kernel DMA protection. Yeo used the CREGFIX DOS driver for stability and applied patches from Rudolph Loew to overcome Windows 98's RAM limitation of 512 MB. Users must rely on basic VESA support and the SoftGPU driver for graphics acceleration due to the absence of updated drivers from Intel and NVIDIA. Disk access is routed through the BIOS, leading to suboptimal performance. Yeo configured the BIOS to support the S3 power state to address ACPI support issues. UEFI-CSM is often overlooked in newer systems, complicating the installation of Windows 7 and contributing to divides in the x86 ecosystem.
Winsage
January 1, 2026
A modification in the Windows Registry can enable a native NVMe driver, potentially doubling the performance of solid-state drives (SSDs) by enhancing random read and write speeds by up to 80%. This driver is typically reserved for enterprise environments and is not officially available for consumer versions of Windows 11. The modification carries risks, including the possibility of rendering a system unbootable and disrupting features like BitLocker encryption. Early adopters have reported mixed results, with some experiencing significant performance improvements while others face stability issues. The tweak highlights the disparity between consumer and enterprise hardware capabilities and reflects ongoing discussions within the tech community about optimizing SSD performance.
Winsage
December 28, 2025
Microsoft introduced a native NVMe driver in Windows Server 2025 to improve SSD performance by eliminating bottlenecks associated with the SCSI translation protocol. This driver allows for direct communication between NVMe drives and Windows, resulting in substantial improvements in random IOPS and reduced CPU overhead for enterprise systems. Tech-savvy users have found a way to enable this driver on Windows 11, leading to reported increases in throughput of up to 45 percent in specific storage tests. The performance enhancements are particularly noticeable in random access workloads, although users should be cautious when modifying the Windows registry due to potential risks. Speed improvements may not be significant for average users but could benefit power users and those running IOPS-intensive applications.
Winsage
December 26, 2025
A new native NVMe storage driver has been introduced in Windows Server 2025, aimed at improving SSD performance by reducing CPU overhead and enhancing IOPS performance. Users have found a way to enable this driver on Windows 11 through manual registry edits, although Microsoft has not officially supported this for consumer versions. The driver implementation in Server 2025 could lead to an 80% increase in IOPS and a 45% reduction in CPU usage, but these figures are specific to server workloads. Community testing on Windows 11 version 25H2 has shown performance improvements of 10-15%. Enabling the driver requires editing the registry, and users must back up the registry or create a restore point beforehand. After activation, NVMe drives will appear under "Storage Media" in Device Manager. Some users may experience compatibility issues with SSD management utilities post-activation. To revert to the default NVMe driver, users can delete the added DWORD entries from the registry and restart the system. This adjustment is experimental and may not guarantee performance upgrades.
Winsage
December 24, 2025
Windows 11 has recently begun to unlock the full potential of NVMe SSDs through registry modifications that enable a pseudo driver injection, resulting in nearly double the random write performance in certain scenarios. A native NVMe driver was rolled out in a recent update to Windows Server 2025, but it is not enabled by default in consumer versions of Windows 11. Users can activate it through specific registry edits. Testing by users revealed significant enhancements in random read and write performance after implementing these changes, with one user noting an 85% improvement in random write speeds. However, caution is advised when making registry edits, as some users have experienced loss of access to their file systems, which was recoverable by reverting the changes. There is no official timeline for when Microsoft will make the native NVMe driver available for Windows 11.
Winsage
December 23, 2025
Windows has supported the NVMe storage media protocol since Windows 8.1, but the default driver, disk.sys, may not provide optimal performance. Microsoft has introduced a new driver, nvmedisk.sys, with Windows 11 25H2 and Windows 2025, aimed at improving NVMe performance. Users can check if they are using the older driver via Device Manager. The new driver has the potential to enhance performance for compatible NVMe drives in both sequential and random workloads. However, compatibility issues exist, as not all NVMe SSDs support nvmedisk.sys, which could lead to boot problems with Windows 11. Notebookcheck has published a guide on enabling nvmedisk.sys, which involves modifying three Windows Registry values, and it is advised that users back up their data before making changes.
Winsage
December 23, 2025
Microsoft has introduced a native NVMe driver for Windows Server 2025, which has been unlocked by users on standard Windows 11 systems, leading to performance improvements. Early benchmarks show a 13% increase in AS SSD scores after activating the driver, with random write speeds improving by 16% and 22% for 4K and 4K-64Thrd workloads, respectively. In another test, random read speeds for a Crucial T705 SSD increased by 12%, and random write speeds improved by 85%. The new driver reduces processing latency by eliminating legacy SCSI overhead, enhancing storage performance. Native NVMe support for Windows Server has been introduced after 14 years, but mainstream Windows users still face challenges accessing it due to incompatibility with third-party SSD management tools. The benefits are most significant in enterprise environments rather than for average consumers or gaming systems.
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