What happens when Windows 11 24H2 Home or Pro reaches end of updates on October 13?

The device stops receiving security and quality updates entirely – no monthly patches, no out-of-band fixes. The PC keeps working, but new vulnerabilities will never be patched. Microsoft’s KB5124008 notes recommend upgrading to a newer Windows 11 version before October 13, 2026; on most devices the 25H2 enablement update handles it in minutes (Microsoft Support, Sep 8, 2026).

How do I build an app in Copilot Cowork today?

Join the Frontier program, then use the /app skill in Copilot Cowork and describe the app you want in natural language; Cowork assembles a working full-stack business app connected to your Microsoft 365 data. Native app building in Copilot Studio is rolling out in public preview for governed, enterprise delivery (Microsoft Copilot Blog, Sep 10, 2026).

What is the OneDrive + Copilot event on October 20?

It is Microsoft’s fourth annual OneDrive digital event, now co-branded with Copilot. It runs October 20, 2026 at 9:00 AM PT, is free to attend, and focuses on working with files and photos in the AI era, followed by a live Q&A. Registration is at aka.ms/OneDriveEvent (Microsoft adoption site).

Is KB5129194 required for Windows 11 26H1 devices?

Yes – it is a security release. The September 14 out-of-band update fixes two privilege-escalation vulnerabilities (CVE-2026-62721 in the User-Mode Power Service and CVE-2026-85921 in Secure Kernel Mode) and moves 26H1 to build 28000.2956. Install it via Windows Update (Microsoft Support, Sep 14, 2026).

Windows & Microsoft AI News: 24H2 & Cowork (Sep 23, 2026)