Server 2025 Archives

Winsage

January 16, 2026

Windows Remote Assistance Vulnerability Allow Attacker to Bypass Security Features

Critical security updates have been released to address CVE-2026-20824, a vulnerability in Windows Remote Assistance that allows attackers to bypass the Mark of the Web (MOTW) defense system. This affects various Windows platforms, including Windows 10 and Windows Server 2025, and is rated with an Important severity level. The flaw enables unauthorized local attackers to circumvent MOTW defenses, posing risks to confidentiality. The vulnerability requires local access and user interaction for exploitation, often using social engineering tactics. Microsoft has issued security updates for 29 Windows configurations, including specific KB articles for affected versions of Windows 10, Windows 11, and Windows Server. Users are advised to apply the necessary patches, which are classified as “Required” customer actions. The vulnerability remains unexploited in the wild and was not publicly disclosed before the patches were released. Microsoft’s assessment categorizes it as “Exploitation Less Likely.”

Winsage

January 15, 2026

Microsoft updates Windows DLL that triggered security alerts

Microsoft has resolved an issue where third-party security applications mistakenly flagged the WinSqlite3.dll component of the Windows operating system as vulnerable. This issue affected various systems, including Windows 10, Windows 11, and Windows Server 2012 through 2025. The flagged vulnerability was linked to a memory corruption issue (CVE-2025-6965). Microsoft released an update to the WinSqlite3.dll component in updates from June 2025 and later, advising users to install the latest updates for their devices. WinSqlite3.dll is a core component of Windows, distinct from sqlite3.dll, which is not part of the operating system. Microsoft had previously addressed other false positive issues affecting its Defender for Endpoint platform.

Winsage

December 30, 2025

Microsoft’s change to Appxsvc may slow some Windows 11 PCs

Microsoft is modifying core system settings for Windows 11 versions 24H2 and 25H2 by enabling the AppX Deployment Service (Appxsvc) to launch automatically upon boot-up, transitioning from a manual trigger system. This change was confirmed in the December 2025 "Patch Tuesday" update (KB5072033) for both Windows 11 and Windows Server 2025. The Appxsvc will now remain active in the background from the moment the computer powers on, regardless of Microsoft Store access, to enhance system stability and minimize app installation failures or update glitches. Microsoft warns against manually reverting this setting, as it could lead to malfunctions in Store apps and essential services. Analysts suggest this move aligns with a strategy for updating Microsoft Store apps directly through Windows Update.

Winsage

December 28, 2025

Your Windows SSD Could Be Faster, Microsoft’s New Update Reveals Why

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

This Registry Hack Unlocks a Faster NVMe Driver in Windows 11

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 25, 2025

Microsoft’s Hardware-Accelerated BitLocker Brings Massive Performance Gains

Microsoft has introduced a hardware-accelerated BitLocker encryption system for Windows 11, which shifts the encryption workload from software to dedicated accelerator units in future CPU microarchitectures. This new system is available in Windows 11 version 25H2 and Windows Server 2025 following the September update. Initial testing shows that certain workloads can achieve double the storage performance and reduce CPU usage by over 70%. The encryption processing is offloaded to a fixed-function cryptography engine within the system on chip (SoC), and encryption keys are hardware-wrapped for enhanced security. The initial rollout focuses on Intel vPro platforms with Core Ultra Series 3 "Panther Lake" processors, with plans to extend support to other vendors. Performance data indicates that while sequential read and write speeds are similar between software and hardware approaches, random 4K operations show significant improvements, with hardware-accelerated BitLocker being 2.3 times faster in RND4K Q32T1 tests and demonstrating a 40% speed increase for single-queue random reads and a 2.1 times speed increase for single-queue random writes.

Winsage

December 25, 2025

Native NVMe support in Windows Server 2025 promises dramatic speed gains

Microsoft has introduced native NVMe support in Windows Server 2025, enhancing the performance of modern NVMe devices, including PCIe Gen5 SSDs and high-end Host Bus Adapters (HBAs). This feature eliminates the translation layers that previously routed NVMe I/O through SCSI, resulting in reduced processing overhead and latency. Testing shows that Windows Server 2025 can achieve up to 80% higher 4K random read IOPS and approximately 45% fewer CPU cycles per I/O compared to Windows Server 2022. The enhancements benefit enterprise applications such as SQL Server, OLTP workloads, and virtualization environments using Hyper-V, as well as analytics and AI/ML workloads. To utilize native NVMe, system administrators must use the in-box Windows NVMe driver, and the feature requires an opt-in process with the latest cumulative update and registry key or Group Policy configuration. Organizations should validate the implementation to assess its impact on their production environments.

Winsage

December 24, 2025

This neat Windows 11 registry trick offers higher NVMe SSD performance—but it’s not for everyone

Recent discoveries have revealed a registry tweak that can enhance the performance of NVMe SSDs on Windows 11, particularly improving random 4K speeds. Traditionally, Windows has treated most drives as SCSI, limiting the potential of NVMe drives. Microsoft is introducing native NVMe support in Windows Server 2025, which bypasses the SCSI conversion process for improved speed and efficiency. Users can achieve similar enhancements on Windows 11 through specific registry modifications, which must be done at their own risk. The necessary driver is included in recent updates for both Windows Server 2025 and Windows 11. Users need to adjust three registry values to enable this functionality. Once modified, NVMe drives will appear under 'Storage Media' in Device Manager. Reports indicate significant performance gains, with one user noting increases of 45% in random 4K read and 49% in write performance. Microsoft suggests enterprise users could see up to 80% higher IOPS and a 45% reduction in CPU cycles. The WD Black SN8100 SSD is noted for its high random 4K speeds, loading games faster than competitors. Many users have pointed out that Linux has had native NVMe support for some time.

Winsage

December 24, 2025

Windows 11 has a hidden driver that may boost NVMe SSD performance

Windows users have relied on the disk.sys driver for storage management since 2006, which has not changed significantly despite support for NVMe since Windows 8.1. Microsoft has introduced nvmedisk.sys for Windows Server 2025 and a version in Windows 11 25H2, which improves performance by enhancing integration with NVMe technology. Tests show that nvmedisk.sys offers better raw throughput in sequential and random read/write tasks compared to disk.sys, as it removes the legacy SCSI translation layer, reducing overhead and improving latency, particularly on high-end SSDs. However, enabling nvmedisk.sys may cause system instability or boot failures if the SSD controller lacks compatibility, and users are advised to check the current driver in Device Manager and back up data before switching drivers. The new driver is still in a soft launch phase, and there is uncertainty about when it will be available in a stable build.

Winsage

December 24, 2025

Windows 11 driver hack boosts NVMe SSD performance by up to 85%

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.