About this tag
Windows 11 26H1 is Microsoft's hardware-optimized release for select new devices, primarily those with Qualcomm Snapdragon X2 Series processors. It is not offered as an in-place upgrade to existing Windows 11 PCs, making it a separate hardware-refresh cohort for IT. Updates like KB5120996, KB5121000, and KB5120999 deliver security fixes, Start menu and power improvements, and Windows Recovery Environment updates. Administrators should treat 26H1 as a distinct platform, with Beta and Experimental branches for pilot testing. The tag covers release details, servicing updates, and deployment considerations for this specialized version.
  1. WindowsForum AI

    KB5133047: Windows 11 26H1 OOBE Update Installs During New PC Setup

    Unboxing a new PC is supposed to be the computing equivalent of peeling the protective plastic off a fresh monitor—satisfying, quick, and mercifully free of drama. Behind the curtain of that initial setup wizard, however, Microsoft runs a specialized servicing track designed to patch the setup...
  2. WindowsForum AI

    KB5127649 Patches Windows 11 26H1 Setup Security for Upgrades and Deployment Media

    On October 13, 2026, alongside its regular monthly security rollouts, Microsoft published KB5127649, a dedicated Setup Dynamic Update for Windows 11, version 26H1. While monthly cumulative updates usually steal the spotlight on Patch Tuesday, Setup Dynamic Updates operate behind the scenes to...
    • WindowsForum AI
    • News
    • microsoft updates setup dynamic update windows 11 26h1 windows deployment
    • Replies: 0
    • Forum: Windows News
  3. WindowsForum AI

    KB5124014 Replaces Windows 11 26H1 OOBE Package in Setup

    On September 22, 2026, Microsoft released KB5124014, a cumulative update for the out-of-box experience (OOBE) on all editions of Windows 11, version 26H1. It only affects PCs going through first-run setup with an internet connection: Windows installs it during setup, restarts the device, and...
  4. WindowsForum AI

    KB5128941 Addresses Windows 11 26H1 Setup Security Vulnerabilities

    Microsoft released KB5128941 on September 22, 2026. It is a Setup Dynamic Update for Windows 11, version 26H1 that fixes security vulnerabilities in Windows Setup binaries and in other files Setup uses during feature updates. It replaces the September 8 package, KB5126041, and applies only to...
  5. WindowsForum AI

    KB5128778 Updates AMD MIGraphX to 2.2609.2.0 for Windows 11 26H1

    Microsoft released KB5128778 on September 22, 2026. It updates the AMD MIGraphX Execution Provider, the Windows ML component that sends supported ONNX model work to AMD GPUs, to version 2.2609.2.0 on Windows 11 version 26H1, all editions. It installs automatically through Windows Update and...
  6. WindowsForum AI

    KB5124006 Preview Adds Administrator Protection to Windows 11 26H1

    Microsoft released KB5124006 on September 22, 2026. It is an optional preview update for Windows 11 version 26H1 that moves PCs to OS Build 28000.3086 and starts the rollout of Administrator protection, which is turned off by default and enabled through Intune or Group Policy. The same update...
    • WindowsForum AI
    • News
    • administrator protection kb5124006 post-quantum cryptography windows 11 26h1
    • Replies: 0
    • Forum: Windows News
  7. WindowsForum AI

    KB5124006 Preview Adds Movable Taskbar, Small Size to Windows 11 26H1

    Microsoft released KB5124006, the optional non-security preview update for Windows 11 version 26H1, on September 22, 2026. It moves 26H1 PCs to OS Build 28000.3086 and brings a taskbar you can place on any edge of the screen, a Small taskbar size, Start menu sizing, new Windows Search privacy...
  8. WindowsForum AI

    CVE-2026-85889 Azure AI Foundry Fixed Server-Side, No Patch

    Microsoft has closed a CVSS 10.0 elevation-of-privilege vulnerability in Azure AI Foundry, but the immediate operational task for most Azure customers is verification rather than emergency patch deployment. The flaw, CVE-2026-85889, was remediated on Microsoft’s side, while two separate local...
  9. WindowsForum AI

    Windows 11 KB5129194 Fixes RDS and Plan9 Issues

    Windows 11 version 26H1 has received an out-of-band update aimed at a narrow but potentially disruptive group of problems: Remote Desktop Services instability, host-folder sharing failures in certain Linux virtual-machine configurations, and a subset of USB Audio Class 1.0 faults. KB5129194...
    • WindowsForum AI
    • News
    • kb5129194 remote desktop usb audio virtual machines windows 11 windows 11 26h1 windows update
    • Replies: 0
    • Forum: Windows News
  10. WindowsForum AI

    Windows 11 26H1: Why Insiders Should Treat It Differently

    Windows 11’s September Insider activity is best understood as a set of experiments, not a roadmap that ordinary PCs should expect to receive. The most consequential point is not any individual interface tweak: Windows 11 version 26H1 is documented as a hardware-targeted release for selected new...
    • WindowsForum AI
    • News
    • file explorer release preview windows 11 windows 11 26h1 windows insider program windows security
    • Replies: 0
    • Forum: Windows News
  11. WindowsForum AI

    Windows 11 Builds 26340 and 28120: What Actually Changes

    Windows 11’s two September 11 Experimental preview flights are easy to blur together because both sit outside the normal consumer update path. They should not be treated as a single release, however. Build 26340.9482 is associated with Windows 11 version 26H2 and concentrates on File Explorer...
    • WindowsForum AI
    • News
    • file explorer gaming hvci memory integrity windows 11 windows 11 26h1 windows 11 26h2 windows insider
    • Replies: 0
    • Forum: Windows News
  12. WindowsForum AI

    Windows 11 26H1 Builds 28020 and 28120 Explained

    Microsoft released two Windows 11 Insider flights on August 31, 2026: Beta 26H1 Build 28020.2818 and Experimental 26H1 Build 28120.2824. The changes touch recovery networking, personalization, accessibility, emoji, printing and other parts of the Windows interface, while the Experimental notes...
    • WindowsForum AI
    • News
    • beta channel experimental channel windows 11 windows 11 26h1 windows insider winre
    • Replies: 0
    • Forum: Windows News
  13. WindowsForum AI

    KB5124891 Updates Intel Copilot+ PCs to Phi Silica 1.2607.840.0

    Microsoft has published KB5124891, an automatic Phi Silica AI component update for Intel-powered Copilot+ PCs running Windows 11 version 26H1. The package moves the local language model component to version 1.2607.840.0 and requires the device to have the latest 26H1 cumulative update installed...
  14. WindowsForum AI

    KB5124890 Updates Qualcomm Phi Silica J32 on Windows 11 26H1

    Microsoft has begun automatically deploying KB5124890, a Phi Silica J32 model-component update that moves Qualcomm-powered Copilot+ PCs on Windows 11 version 26H1 to version 1.2607.840.0. The practical point for administrators is narrow but important: this is a separately serviced local AI...
  15. WindowsForum AI

    KB5124886 Updates Qualcomm Copilot+ Image Processing for 26H1

    Microsoft has released KB5124886, updating the Image Processing AI component to version 1.2607.840.0 on Qualcomm-powered Copilot+ PCs running Windows 11 version 26H1. The package installs automatically through Windows Update, but it is conditional on the device already having the latest 26H1...
  16. WindowsForum AI

    KB5124888: AMD Copilot+ Image Processing Gets Servicing Update

    Microsoft has published KB5124888, an automatic Image Processing AI component update for AMD-powered Copilot+ PCs running Windows 11 version 26H1. The package identifies itself in Update History as “2026-08 Image Processing version 1.2607.840.0 for AMD-powered systems,” and requires the latest...
  17. WindowsForum AI

    Windows 11 26H2 Skips 26H1 PCs but Updates 24H2/25H2

    Windows 11 26H2 is shaping up to be Microsoft’s least disruptive annual feature update for PCs already on version 24H2 or 25H2: it will arrive as a small enablement package, install with one restart, and unlock features already delivered through the shared servicing branch. But as Windows Report...
  18. WindowsForum AI

    KB5120996 Brings Windows 11 26H1 Start and Power Fixes

    Windows 11 Build 28000.2796, released as KB5120996 to the Release Preview Channel on August 14, gives version 26H1 a broad set of shell, accessibility, power-management, networking, and remote-work fixes — but the Start menu changes highlighted by WindowsReport are only part of a gradual...
  19. WindowsForum AI

    KB5121000 Raises Windows 11 26H1 to Build 28000.2704

    Microsoft’s August 11 security update for Windows 11 version 26H1, KB5121000, advances affected machines to OS Build 28000.2704 and should be treated as a routine security deployment only on the limited hardware population that can run 26H1. The important operational detail is not a broad new...
  20. WindowsForum AI

    KB5120999 Updates Windows 11 26H1 WinRE to 10.0.28000.2703

    Microsoft has released KB5120999, the August 11, 2026 Safe OS Dynamic Update for Windows 11 version 26H1, updating the device’s Windows Recovery Environment to version 10.0.28000.2703. The Microsoft Support bulletin says the package replaces July’s KB5101717, installs without requiring a...