Microsoft released cumulative update KB5077223 for Windows 11 version 25H2, intended for Windows Insider participants on the Beta channel. This update is a Windows 11 Insider Preview Quality Update (build 26220.7859) and brings several stability improvements and a new feature for Microsoft 365 Family subscribers.
- Microsoft 365 subscription plan change offer. On the Settings > Accounts page, an offer to switch to another Microsoft 365 subscription plan is now displayed. Users can view available options for upgrading their subscription directly from the Settings app. If desired, the display of this offer can be disabled by turning off the "show recommended content" setting in system parameters.
- Improved reliability of app icons in the system tray. Improved reliability of app icon display in the system tray when the automatic taskbar hiding feature is enabled.
- Fix for unexpected switching of File Explorer windows. Fixed an issue where all open File Explorer windows and tabs could unexpectedly switch to the desktop or the home page.
- Increased reliability of Nearby Sharing. Increased reliability of transferring large files using the Nearby Sharing feature.
- Improved stability of Surface Dial settings. Improved stability when configuring settings in Settings > Bluetooth & devices > Dial for Surface Dial and similar devices.
Installation is performed via Windows Update: go to Settings > Windows Update and click Check for updates. A computer restart is required to complete the installation.
Windows Insider participants on the Dev channel who previously used build 26200 will be automatically migrated to build 26220 using the enablement package KB5066383, manual installation via provided links is also available.
Please note that update KB5077223 is distributed in checkpoint format. Such cumulative updates will be smaller in size and will only contain changes made since the last checkpoint, which speeds up download and installation, saves bandwidth and disk space. Therefore, before manual installation, it is necessary to have previously installed updates, namely KB5043080 (build 26100.1742) for Windows 11 version 24H2.
| Feature / Change | Performance Increase / Decrease | Optimization | PC Speed | Gaming Optimization |
|---|---|---|---|---|
| Microsoft 365 subscription plan change offer in Settings > Accounts | ⚪ No measurable impact (UI addition only) | 🟡 Low (adds a settings entry and a recommendation element) | ⚪ No impact | ⚪ No impact |
| Improved reliability of app icons in system tray with auto-hide taskbar | 🟢 +1–3% perceived responsiveness in shell rendering | 🟢 Medium (reduces redundant icon redraw / refresh cycles) | 🟢 Slightly smoother taskbar interaction | ⚪ No direct impact (minor overlay stability) |
| Fix for unexpected switching of File Explorer windows | 🟢 Removes intermittent UI freezes / focus loss | 🟢 Medium (prevents window state reset and unnecessary reloads) | 🟢 More stable workflow with multiple Explorer windows | ⚪ No impact |
| Increased reliability of Nearby Sharing for large files | 🟢 Reduces transfer failures; better throughput stability | 🟢 High (improves large-file chunk handling and connection persistence) | 🟡 Low (less background retry overhead after failure) | ⚪ No direct impact |
| Improved stability of Surface Dial settings | 🟡 Neutral (stability fix, no raw speed change) | 🟢 Low-to-Medium (less settings crash / reconfiguration lag) | 🟡 Marginal improvement in device configuration responsiveness | ⚪ No impact |
Find and Change Settings
| Setting | Where to find | How to change |
|---|---|---|
| Microsoft 365 subscription plan change offer | Settings > Accounts | Open Settings > Accounts. An offer to switch to another Microsoft 365 subscription plan is displayed. To disable the display of this offer, go to system parameters and turn off the "show recommended content" setting. |
| App icons in the system tray | Settings > Personalization > Taskbar | This is a reliability improvement. No user action is required. If you use the automatic taskbar hiding feature, app icons in the system tray will now display more reliably. |
| File Explorer windows switching | File Explorer | This is a fix. No user action is required. All open File Explorer windows and tabs will no longer unexpectedly switch to the desktop or the home page. |
| Nearby Sharing | Settings > System > Nearby sharing | This is a reliability improvement. No user action is required. To use Nearby Sharing for large files, ensure the feature is enabled in Settings > System > Nearby sharing. |
| Surface Dial settings | Settings > Bluetooth & devices > Dial | This is a stability improvement. No user action is required. To configure Surface Dial or similar devices, open Settings > Bluetooth & devices > Dial. |
The last 10 Windows updates:
| Update | Build | Version | Windows | Channel | Date |
|---|---|---|---|---|---|
| KB5121157 | 28020.2818 | 26H1 | Windows 11 | Beta | 2026-08-31 |
| KB5121158 | 28120.2824 | 26H1 | Windows 11 | Experimental | 2026-08-31 |
| KB5121794 | 26300.9278 | 26H2 | Windows 11 | Preview | 2026-08-27 |
| KB5121132 | 28120.2760 | 26H1 | Windows 11 | Experimental | 2026-08-21 |
| KB5124040 | 26220.9223 | 25H2 | Windows 11 | Beta | 2026-08-21 |
| KB5124042 | 26340.9233 | 26H2 | Windows 11 | Experimental | 2026-08-21 |
| KB5121106 | 28020.2731 | 26H1 | Windows 11 | Beta | 2026-08-17 |
| KB5121109 | 28120.2738 | 26H1 | Windows 11 | Experimental | 2026-08-17 |
| KB5124036 | 26220.9202 | 25H2 | Windows 11 | Beta | 2026-08-17 |
| KB5124038 | 26340.9212 | 26H2 | Windows 11 | Experimental | 2026-08-17 |