windows 11 26h1

  1. Secure Boot Certificate Expiration 2026: Update to Windows UEFI CA 2023

    Microsoft has issued a platform-level warning: the Secure Boot certificates first issued around 2011 that underpin Windows’ pre-boot trust model begin expiring in June 2026, and although most updated systems will continue to boot, devices that do not receive the replacement certificate family...
  2. Secure Boot Certificate Expiration 2026: Plan for 2023 CA Updates in Windows 11

    Microsoft’s March 10, 2026 Safe OS Dynamic Update (KB5079463) is a quiet but urgent operational bulletin: the long‑running Secure Boot certificates that Microsoft provisioned around 2011 begin to expire in mid‑2026, and while Microsoft and OEM partners are rolling a replacement “2023 CA” family...
  3. Windows 11 26H1 Frühjahrs-Update: OEM Images und neue Updatepfade

    Microsoft hat den Start einer umfangreichen Frühlings‑Update‑Welle für Windows 11 eingeläutet — doch diese Welle ist komplexer, selektiver und technikfokussierter, als viele Nutzer auf den ersten Blick vermuten würden. Während Microsoft mit dem neuen Release‑Fluss einerseits neue...
  4. February 2026 Windows IT Pro Bulletin: Secure Boot, Native Sysmon, 26H1 Testing

    Microsoft’s February update cycle delivered more than the usual bug fixes: it set the stage for several operational shifts IT teams must plan for now if they want to avoid disruption later this year. From a looming Secure Boot certificate lifecycle cliff to built‑in security telemetry (native...
  5. KB5077239 Preview: Windows 11 26H1 Tightens Cross-Device Resume and Explorer

    Microsoft quietly shipped a substantial preview package for Windows 11’s 26H1 branch this week — KB5077239 (OS Build 28000.1643) — and while it isn’t a headline-grabbing feature release, it tightens several cross-device continuity hooks, polishes File Explorer and shell behavior, and surfaces...
  6. Windows 11 26H1 Bromine: OEM Flash for Snapdragon X2 ARM PCs

    Microsoft's decision to ship a device‑specific Windows 11 release in early 2026 has reshaped the update conversation: Windows 11, version 26H1 will be distributed exclusively as a preinstalled, OEM‑flashed image on select Arm64 PCs — notably systems built around Qualcomm’s Snapdragon X2 family —...
  7. Windows 11 26H1 Bromine: A device-first platform for Arm AI devices

    Microsoft has quietly shipped a new, purpose-built Windows image — Windows 11, version 26H1 — but unlike prior H1/H2 releases this one is not a general feature update for the existing Windows population; it’s a factory‑installed, hardware‑gated platform image intended to enable next‑generation...
  8. Windows 11 26H1 Bromine: ARM platform enablement for Snapdragon X2 laptops

    Microsoft’s new Windows 11 build landed in early 2026, but for most people it isn’t an update at all — it’s a factory image for a narrow set of new ARM PCs and will not be offered through Windows Update to existing Intel or AMD machines. (learn.microsoft.com) Background / Overview Windows...
  9. KB5079266 Phi Silica AI Update Brings Local NPU Power to Intel Copilot+ on Windows 11 26H1

    Microsoft has quietly released KB5079266, an incremental Phi Silica AI component update that installs Phi Silica version 1.2601.1273.0 on Intel‑powered Copilot+ PCs running Windows 11, version 26H1, and the package is delivered automatically through Windows Update to qualifying devices...
  10. KB5079261 Qualcomm Image Processing AI Update on Windows 11 26H1

    Microsoft’s terse update note for KB5079261 says the Image Processing AI component for Qualcomm-powered systems has been bumped to version 1.2601.1273.0 and will be delivered automatically to eligible devices running Windows 11, version 26H1. The package, Microsoft explains, focuses on the...
  11. KB5079253 Copilot+ Image Transform AI Update 1.2602.1451.0 on Windows 11 24H2/25H2

    Microsoft quietly released a targeted component update for Copilot+ PCs this February: KB5079253 advances the Image Transform AI component to version 1.2602.1451.0, and — like its immediate predecessors — is delivered automatically through Windows Update to eligible Windows 11 devices running...
  12. KB5079267 Phi Silica Update Brings On‑Device AI to AMD Copilot+ PCs on Windows 11 26H1

    Microsoft has quietly published KB5079267 — a targeted Phi Silica AI component update that installs Phi Silica version 1.2601.1273.0 on eligible AMD‑powered Copilot+ PCs running Windows 11, version 26H1. The package is delivered automatically through Windows Update, requires the latest 26H1...
  13. KB5079254 Phi Silica Update: On-Device AI for Qualcomm Copilot+ on Windows 11

    Microsoft has quietly published KB5079254, a targeted component update that advances the Phi Silica on‑device language model to version 1.2602.1451.0 for Qualcomm‑powered Copilot+ PCs running Windows 11, versions 24H2 and 25H2 — the package installs automatically via Windows Update, requires the...
  14. Phi Silica 1.2601.1273.0 Update for Qualcomm Copilot+ on Windows 11 26H1

    Microsoft has issued a targeted Phi Silica component refresh for Qualcomm-powered Copilot+ systems — a silent but important step in the ongoing effort to move capable language-model inference onto the endpoint. The package (listed as Phi Silica version 1.2601.1273.0 in the release notice you...
  15. Windows 11 26H1: Hardware-Gated ARM Release for Snapdragon X2 Laptops

    Microsoft has confirmed that Windows 11, version 26H1 will ship as a narrowly scoped, hardware‑gated release — available only on new PCs built around Qualcomm’s Snapdragon X2 family — and not as a general update for the existing Windows installed base. Background / Overview Microsoft’s...
  16. Windows 11 26H1 Bromine Platform: Arm First, Not a General Update

    Microsoft’s unexpected 26H1 release is not the next Windows upgrade for your current PC — it’s a device‑specific, hardware‑optimized platform image built to enable next‑generation Arm silicon, and it will ship only on qualifying new machines (most notably Qualcomm’s Snapdragon X2 series) rather...
  17. Windows 11 26H1: Hardware optimized Arm first OS for Snapdragon X2

    Microsoft’s narrow rollout of Windows 11, version 26H1 — a platform‑level release Microsoft describes as “hardware‑optimized” — has exposed a new chapter in Windows servicing: instead of a familiar broad feature update, 26H1 will ship only on a tightly defined set of new Arm‑based PCs built...
  18. Windows 11 26H1 Bromine: ARM First Release for Snapdragon X2 PCs

    Microsoft’s February rollout of Windows 11, version 26H1, is not just another feature update — it’s a targeted, platform-first release built to land on a narrow set of Arm-based PCs and to shepherd a new generation of silicon into the Windows ecosystem. The release starts February 10, 2026, will...
  19. Windows 11 26H1 Platform Enablement for Snapdragon X2 Arm Laptops

    Microsoft’s decision to ship a split Windows 11 release this spring — a platform-only build labeled Windows 11, version 26H1 that will appear exclusively on new Arm-based PCs powered by Qualcomm’s Snapdragon X2 series — marks a meaningful pivot in how Microsoft supports new silicon and how the...
  20. Windows 11 26H1 Bromine Platform: Factory Installed Snapdragon X2 Laptops

    Microsoft’s latest Windows 11 release is not the typical consumer-facing feature drop: Windows 11, version 26H1 (Build 28000) is a narrowly scoped, platform-first image intended to enable next‑generation Arm-based silicon and — crucially — will be delivered as factory‑installed images on...