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Native NVMe support in Windows Server 2025 promises dramatic speed gains
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.
Microsoft asks IT admins to reach out for Windows IIS failures fix
Winsage
December 17, 2025

Microsoft asks IT admins to reach out for Windows IIS failures fix

Microsoft has informed the business community about a known issue with Message Queuing (MSMQ) affecting enterprise applications and Internet Information Services (IIS) sites. This problem primarily impacts users on Windows 10 22H2, Windows Server 2019, and Windows Server 2016 who installed specific security updates (KB5071546, KB5071544, and KB5071543) released in December 2025. Symptoms include inactive MSMQ queues, applications unable to write to queues, IIS sites failing with "insufficient resources" errors, and misleading messages about disk space or memory. The issue stems from changes to the MSMQ security model that altered permissions on the C:WindowsSystem32MSMQstorage folder, requiring MSMQ users to have write access to a directory typically restricted to administrators. Microsoft has not provided a timeline for a fix and suggests affected IT administrators contact their support team for temporary workarounds or consider rolling back the updates.
Microsoft: December security updates cause Message Queuing failures
Winsage
December 17, 2025

Microsoft: December security updates cause Message Queuing failures

Microsoft has acknowledged a significant issue with the December 2025 security updates that disrupts Message Queuing (MSMQ) functionality, affecting enterprise applications and Internet Information Services (IIS) websites. The problem is prevalent among systems running Windows 10 22H2, Windows Server 2019, and Windows Server 2016 with security updates KB5071546, KB5071544, and KB5071543. Users are experiencing inactive MSMQ queues, IIS sites failing with "insufficient resources" errors, applications unable to write to queues, and misleading error messages about "insufficient disk space or memory." The root cause is changes to the MSMQ security model that altered permissions on the C:WindowsSystem32MSMQstorage folder, requiring MSMQ users to have write access to a directory typically reserved for administrators. Devices with users logged in as administrators are not affected. Microsoft is investigating the issue but has not provided a timeline for resolution. Rolling back the updates is a potential solution for administrators, though it carries security risks. This follows a warning from Microsoft in April 2023 about a critical vulnerability in the MSMQ service.
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