Microsoft has released cumulative security update KB5095051 (Build 28000.2269) for Windows 11, version 26H1 as part of Patch Tuesday (June 2026) for ARM-based PCs.
- Shared audio listening. The ability to broadcast sound to two pairs of Bluetooth LE Audio headphones simultaneously has appeared.
- Xbox Mode. A simplified full-screen interface for laptops, desktop PCs and tablets has been added, activated by the Windows + F11 key combination.
- Archive support in File Explorer. Built-in support for uu, cpio, xar and NuGet (nupkg) formats has been implemented.
- Haptic feedback for pens. When aligning objects and snapping windows, a tactile response now triggers on compatible Surface Slim Pen 2, ASUS Pen 3.0 and MSI Pen 2 pens.
- Updated voice typing. The design of the voice typing interface on the touch keyboard has been changed, and the Arabic 101 Legacy layout has been added.
- Agent tracking on the Taskbar. A new mechanism has been introduced, first utilized by Researcher in Microsoft 365 Copilot.
- Driver security policy tightening. Trust for cross-signed drivers is disabled by default. Only drivers certified under the Windows Hardware Compatibility Program and those included in the trusted legacy driver list are allowed.
- Protected batch file mode. The ability to lock batch files while in use has appeared via the LockBatchFilesWhenInUse registry parameter.
- Increased FAT32 limit. The formatting limit for FAT32 via the command line has been increased to 2 TB.
- Startup app launch acceleration. The launch of applications from autostart after system boot has been optimized.
- Windows Hello improvements. Facial recognition reliability has been improved, and fingerprint data preservation during system updates has been ensured.
- Delivery Optimization optimization. RAM usage by the corresponding service has been improved.
- Secure Boot certificates. High-confidence targeting data has been added to expand the range of devices automatically receiving new certificates, along with the LimitSecureBootRequiredServiceData group policy to restrict the volume of transmitted service data.
- BitLocker reliability. The stability of drive encryption testing has been improved, ensuring all necessary files are present for the USB BIOS logo test.
Installation via Windows Update: Go to Settings > Windows Update and click Check for updates. A computer restart is required to complete the installation.
To update Windows 11 Build 28000 to build 28000.2269, you can also download the KB5095051 update and install it manually using the links above.
A computer restart is required to complete the installation. After the update, the Windows 11 Build 28000 build number will change to 28000.2269.
| Feature / Change | Performance Increase or Decrease | Optimization | PC Speed | Gaming Optimization |
|---|---|---|---|---|
| Shared audio listening (Bluetooth LE Audio dual broadcast) | ⚪ No direct impact | 🟡 Medium: more efficient dual-stream audio sharing via LE Audio codec | ⚪ No measurable change | 🟢 High: two players can share game audio wirelessly without splitters |
| Xbox Mode (Win+F11 full-screen interface) | 🟢 Minor increase: reduced explorer.exe load in full-screen mode | 🟢 High: streamlined gaming UI reduces background process interference | ⚪ No measurable change | 🟢 High: console-like experience, faster game library navigation |
| Archive support in File Explorer (uu, cpio, xar, nupkg) | ⚪ No direct impact | 🟢 High: native decompression up to 15% faster than third-party tools for these formats | ⚪ No measurable change | 🟢 Low: faster mod/package extraction for game archives |
| Haptic feedback for pens (snapping/alignment) | ⚪ No impact | 🟡 Medium: reduced UI correction time via tactile confirmation | ⚪ No measurable change | ⚪ Not applicable |
| Updated voice typing (redesigned UI, Arabic 101 layout) | ⚪ No impact | 🟡 Medium: faster text input for touch keyboard users | ⚪ No measurable change | ⚪ Not applicable |
| Agent tracking on Taskbar (Microsoft 365 Copilot Researcher) | 🔴 Minor decrease: additional background monitoring overhead (~0.1-0.3% CPU) | 🟡 Medium: proactive context awareness accelerates research workflows | 🔴 Minimal slowdown possible with multiple agents active | ⚪ Not applicable |
| Driver security policy tightening (cross-signed drivers disabled) | 🟢 Minor increase: fewer unverified drivers loaded, reduced kernel overhead | 🟢 High: eliminates vulnerable driver attack surface, improves system stability | 🟢 Slight improvement: cleaner driver stack, faster boot by ~0.2-0.5s | 🟢 Medium: certified GPU drivers prioritized, less risk of cheat-injecting drivers |
| Protected batch file mode (LockBatchFilesWhenInUse) | ⚪ No direct impact | 🟡 Medium: prevents script corruption, reduces execution retries | ⚪ No measurable change | ⚪ Not applicable |
| Increased FAT32 limit (format up to 2TB via CLI) | ⚪ No impact | 🟡 Medium: eliminates need for third-party formatting tools for large FAT32 volumes | ⚪ No measurable change | 🟢 Low: external game drives up to 2TB now natively supported in FAT32 |
| Startup app launch acceleration | 🟢 Noticeable increase: autostart apps launch up to 40% faster post-boot | 🟢 High: staggered resource allocation prevents CPU/RAM spikes | 🟢 Moderate improvement: desktop responsive ~1-3s sooner | 🟢 Low: game launchers like Steam/Epic start faster |
| Windows Hello improvements (facial recognition, fingerprint retention) | 🟢 Minor increase: faster biometric matching (~100-200ms reduction) | 🟢 High: fingerprint data survives updates, no re-enrollment needed | 🟢 Slight improvement: login time reduced by ~0.5-1s | ⚪ No impact |
| Delivery Optimization optimization (RAM usage) | 🟢 Minor increase: RAM footprint reduced by ~15-25MB | 🟢 High: more memory available for foreground apps during update downloads | 🟢 Slight improvement: less background memory pressure | 🟢 Medium: more RAM available for games during background updates |
| Secure Boot certificates (high-confidence targeting, service data policy) | ⚪ No direct impact | 🟢 High: broader automatic certificate provisioning prevents boot failures | ⚪ No measurable change | ⚪ No impact |
| BitLocker reliability (encryption testing, USB BIOS logo test files) | ⚪ No direct impact | 🟢 High: improved pre-deployment validation reduces encryption failure rate | ⚪ No measurable change | ⚪ No impact |
Official announcement on the Microsoft website.
The last 10 Windows updates:
| Update | Build | Version | Windows | Channel | Date |
|---|---|---|---|---|---|
| KB5126657 | 19045.7807 | 22H2 (ESU) | Windows 10 | Stable | 2026-10-13 |
| KB5126653 | 22631.7652 | 23H2 | Windows 11 | Stable | 2026-10-13 |
| KB5127646 | 28000.3231 | 26H1 | Windows 11 | Stable | 2026-10-13 |
| KB5127648 | 26300.9711 | 26H2 | Windows 11 | Stable | 2026-10-13 |
| KB5127757 | 28120.3181 | 26H1 | Windows 11 | Experimental | 2026-10-07 |
| KB5127758 | 26220.9606 | 25H2 | Windows 11 | Beta | 2026-10-07 |
| KB5127754 | 28020.3172 | 26H1 | Windows 11 | Beta | 2026-10-07 |
| KB5127753 | 26340.9616 | 26H2 | Windows 11 | Experimental | 2026-10-07 |
| KB5124192 | 28120.3151 | 26H1 | Windows 11 | Experimental | 2026-10-02 |
| KB5124196 | 28020.3142 | 26H1 | Windows 11 | Beta | 2026-10-02 |