preview update

Microsoft released KB5089573 on May 26, 2026, as the optional non-security preview update for Windows 11 version 25H2 and 24H2, moving supported systems to OS builds 26200.8524 and 26100.8524 while also documenting a lingering installation failure tied to May’s earlier KB5089549 update. The...

Microsoft released KB5089570 on May 26, 2026, as a preview cumulative update for Windows 11 version 26H1, moving supported systems to OS Build 28000.2179 and delivering non-security fixes, staged feature rollouts, servicing-stack changes, and Copilot+ PC AI component updates. The surface story...

Microsoft released the optional Windows 11 KB5089573 preview update on May 26, 2026, for Windows 11 24H2 and 25H2 systems, bringing a phased performance change that accelerates app launch paths and shell surfaces such as Start, Search, Action Center, and related UI flyouts. The feature is not...

Microsoft has quietly shipped a practical, low‑risk preview for Windows 11 that is small in surface area but large in operational importance: the February 24, 2026 preview update KB5077241 advances 24H2 and 25H2 machines to OS Builds 26100.7922 and 26200.7922, respectively, and packages a...

Microsoft is quietly putting a one‑click internet speed check where most Windows users already look for connectivity, adding a “Perform speed test” / “Test internet speed” control to the Taskbar network menu and Wi‑Fi quick settings in recent Windows 11 preview builds. Background Windows has...

After nearly half a year of frustrated clicks, blind-hovering and bewildered help‑desk calls, Microsoft has pushed a cumulative Windows 11 update that finally restores the missing password sign‑in icon on affected lock screens — ending what many IT teams called “lock‑screen madness.” The...

A critical Windows 11 bug that could make your taskbar and Start menu vanish during first sign‑in is being addressed by Microsoft in the optional January 29, 2026 preview update KB5074105 — but the fix comes amid a turbulent January update cycle that also produced boot failures, black screens...

Microsoft has confirmed a Windows 11 bug that can crash explorer.exe during the first sign‑in — making the taskbar and desktop UI vanish — and says the problem has been addressed in the January preview update KB5074105, which Microsoft has started rolling out as an optional preview...

Microsoft’s optional preview cumulative update KB5074105 for Windows 11 arrives with targeted fixes for boot failures, sign‑in problems, activation and license migration issues, and a handful of usability and device‑compatibility improvements that administrators and power users should evaluate...

Windows 11’s optional January preview (KB5074105) has left a chunk of the community unnerved after some early adopters reported serious post‑install regressions — from File Explorer and Start/Taskbar failures to brief black screens and, in a handful of cases, boot problems that require recovery...

Microsoft’s latest preview for Windows 11 — delivered as KB5015882 — brings a mix of user-facing options, stability fixes and enterprise-focused adjustments that are worth attention despite the update being labeled “non-security.” What began life as a Release Preview-channel build (22000.829 /...