windows server
New Windows Server emergency updates fix container launch issue
Microsoft has released emergency Windows Server updates to address a known issue preventing Windows containers from launching. The issue affects only containers running under Hyper-V isolation mode, which allows multiple containers to run simultaneously on a single Windows host inside separate virtual machines. “This update fixes an issue caused by 2025.04 B container images released […]
Microsoft: Windows Server 2025 restarts break connectivity on some DCs
Microsoft warned IT admins that some Windows Server 2025 domain controllers (DCs) might become inaccessible after a restart, causing apps and services to fail or remain unreachable. As the company explained, this is caused by the servers loading the standard firewall profile instead of the domain firewall ones after rebooting. “Windows Server 2025 domain controllers (such […]
Microsoft fixes auth issues on Windows Server, Windows 11 24H2
Microsoft has fixed a known issue causing authentication problems when Credential Guard is enabled on systems using the Kerberos PKINIT pre-auth security protocol. According to Redmond, these authentication issues impact both client (Windows 11, version 24H2) and server (Windows Server 2025) platforms, albeit only in some niche scenarios. On affected systems, users experience problems because […]
Microsoft fixes Remote Desktop issues caused by Windows updates
Microsoft has fixed a known issue that caused problems with Remote Desktop and RDS connections after installing Windows updates released since January 2025. As the company explained when it acknowledged the issues on Monday, affected users experience RDP disconnections after 65 seconds when establishing UDP connections from Windows 11 24H2 to RDS hosts on systems […]
Recent Windows Server 2025 updates cause Remote Desktop freezes
Microsoft says a known issue is causing Remote Desktop freezes on Windows Server 2025 systems after installing security updates released since the February 2025 Patch Tuesday. “After installing the February 2025 Security update (KB5051987), released February 11, 2025, and later updates, on Windows Server 2025 devices, you might experience Remote Desktop sessions freezing shortly after connection,” […]
Microsoft fixes bug causing Windows Server 2025 boot errors
Microsoft has fixed a known issue causing “boot device inaccessible” errors during startup on some Windows Server 2025 systems using iSCSI. “This is observed on servers operating under NDIS Poll Mode booting from an iSCSI LUN,” the company explained when it acknowledged the bug in late October. “Under such configuration, the server will experience the error during […]
Microsoft: January Windows security updates break audio playback
Microsoft has confirmed that the January 2025 Windows security updates are breaking audio playback on some systems with external DACs (digital-to-analog converters). DACs are commonly used at home, in professional music studios, and in portable music players to improve audio quality, process signals, or convert digital audio into analog signals for playback through speakers or […]
Microsoft fixes Windows Server 2022 bug breaking device boot
Microsoft has fixed a bug that was causing some Windows Server 2022 systems with two or more NUMA nodes to fail to start up. NUMA (short for non-uniform memory access) is a computer memory architecture in which multiple processors are connected to the same shared memory pool via high-speed interconnections to control performance bottlenecks. This design […]
Microsoft shares temp fix for Outlook crashing when writing emails
Microsoft has shared a temporary fix for a known issue that causes classic Outlook to crash when writing, replying to, or forwarding an email. These problems appear after updating Outlook for Microsoft 365, Outlook 2021, Outlook 2019, or Outlook 2016 to Version 2412 (Build 18324.20168), released on January 7, and will trigger “0xc0000005” exception codes. “You […]
Microsoft fixes Office 365 apps crashing on Windows Server systems
Microsoft has fixed a known issue that caused Microsoft 365 applications and Classic Outlook to crash on Windows Server 2016 or Windows Server 2019 systems. The root cause is a recent Office update, which integrated the React Native framework to support certain Microsoft 365 apps’ features, while the impact was limited to Microsoft 365 users who updated their classic […]