windows server 2025

Upgrading Active Directory domain controllers to Windows Server 2025 is achievable for most organizations, but it demands a disciplined migration plan, careful testing, and attention to a few high‑risk failure modes that can break replication or block forestwide features if overlooked...

Microsoft’s September/October servicing cycle has produced a high-impact collision between a Windows Server 2025 cumulative update and enterprise identity tooling, leaving some organizations with partial directory synchronization and dangerous AD replication failures — a problem Microsoft now...

Microsoft has confirmed that a September 2025 cumulative update for Windows Server 2025 (KB5065426) introduced an Active Directory (AD) replication defect that can break directory synchronization in mixed-version forests when the forest Schema Master FSMO role is hosted on a Windows Server 2025...

Microsoft’s security update for September (KB5065426) has been implicated in a rising wave of identity and file‑sharing headaches for organizations that have adopted Windows Server 2025—yet the most alarming claim now circulating, that a DirSync/Entra Connect group‑sync bug in KB5065426 silently...

Microsoft has confirmed a Windows Server bug that can break Active Directory schema replication when the forest Schema Master FSMO role is hosted on a Windows Server 2025 domain controller and an Exchange schema change is applied, producing schema‑mismatch replication errors that can rapidly...

In a saturated market of vendor announcements and paywalled briefings, the recent press release from Talee Limited positioning Microsoft’s ecosystem as the backbone for “the future of work” is a useful snapshot of how partners are packaging Microsoft technology into business outcomes — but it...

A subtle but dangerous defect in Windows Server 2025’s schema-master behavior is now a confirmed production risk: when the forest Schema Master FSMO role is hosted on a Windows Server 2025 domain controller and an Exchange on‑premises schema extension (for example, Exchange Server 2019 CU15 or...

Microsoft has confirmed a high-impact Active Directory (AD) replication defect that can break domain controller synchronization when the forest Schema Master FSMO role is hosted on a Windows Server 2025 domain controller and Exchange schema changes are applied — a narrow trigger that nonetheless...

Microsoft and Exchange teams are warning administrators about a narrow—but potentially high‑impact—Active Directory schema replication problem that can surface when an Exchange cumulative update (for example, Exchange 2019 CU15 or Exchange Server Subscription Edition RTM) extends the schema...

Microsoft released KB5066687 today — a Safe OS (WinRE) Dynamic Update for Windows 11, version 24H2 and Windows Server 2025 that refreshes the Windows Recovery Environment with updated Safe‑OS binaries and drivers, sets the expected WinRE version to 10.0.26100.6713, and replaces the prior Safe OS...

Microsoft’s newest server release is already generating painful operational lessons: administrators who add a Windows Server 2025 domain controller into a mixed Active Directory environment containing older DCs can trigger widespread authentication breakage — machine account password rotations...

Microsoft’s September servicing quietly removes two long‑standing administration tools — the legacy Windows PowerShell 2.0 engine and the WMIC (Windows Management Instrumentation Command‑line) tool — from certain Windows 11 images, a deliberate security‑first move that closes well‑documented...

Microsoft pushed its September 2025 monthly security updates on Patch Tuesday, delivering a broad set of fixes that address dozens of vulnerabilities across Windows client, server, and Microsoft server products — including multiple emergency severity fixes for remote code execution and a...

Microsoft’s September 2025 hardening update for Windows Server Update Services (WSUS) on Windows Server 2025 removes legacy update binaries used by WSUS to service the Windows Update SelfUpdate component, and that change has immediate operational implications for organizations still relying on...

Microsoft has published advisory guidance tied to CVE‑2025‑55234 that focuses less on a new exploitable bug and more on enabling administrators to find and measure exposure to SMB relay‑style elevation‑of‑privilege attacks before they flip stronger hardening controls. The short form: the SMB...

Microsoft has confirmed and mitigated a compatibility regression introduced by the August 12, 2025 security update KB5063878 that caused unexpected User Account Control (UAC) prompts and failed repairs for applications using Windows Installer (MSI), with the Windows Server 2025 release-health...

Microsoft’s August 2025 servicing wave is the most operationally significant Windows 11 release window in months: it moves day‑one patching into the Out‑of‑Box Experience (OOBE), promotes Windows Backup for Organizations to general availability, extends hotpatching across server and (limited)...

Microsoft has quietly pushed three Out‑of‑Box Experience (OOBE) servicing packages — KB5065813, KB5065847, and KB5065848 — that change how Windows 11 (22H2/23H2/24H2) and Windows Server 2025 are provisioned at first boot, enabling day‑one quality updates and delivering emergency fixes to...

Microsoft pushed two targeted Dynamic Updates over the weekend — KB5065378 and KB5064097 — aimed at hardening setup and recovery for Windows 11, version 24H2, and Windows Server 2025, refreshing the small but critical set of setup binaries and the Windows Recovery Environment (WinRE) used during...

Microsoft quietly published two targeted Dynamic Update packages for Windows 11, version 24H2 (and Windows Server 2025) — KB5065378 (a Setup Dynamic Update) and KB5064097 (a Safe OS / WinRE Dynamic Update) — on August 29, 2025, delivering refreshed setup binaries and a new Windows Recovery...