Update KB5095088 (build 26300.8758) for Windows 11 version 26H2 has become available to insiders on the Experimental channel. In this cumulative package, special attention is paid to refining the taskbar: the company has not only simplified changing its appearance, but also made the animations smoother. In addition, the developers fixed several annoying bugs in File Explorer, including incorrect behavior of the OneDrive shortcut when elevating privileges, and adapted system sounds for the dark theme so that they sound more natural.
- Taskbar size setting. A separate Taskbar size item has been added to the taskbar settings, which makes it easier to choose the optimal appearance without having to use hidden settings.
- Smooth taskbar transitions. The animation when switching between different taskbar sizes has been refined — now the change occurs more smoothly and is visually pleasing.
- Reorganization of the details pane in File Explorer. The file properties pane has been reworked so that the necessary information can be found and viewed at a glance. The reliability of displaying preview thumbnails for cloud files has also been improved.
- Improvement of system sounds for the dark theme. System sound signals have been refined for a more harmonious perception when using Windows in the dark theme.
Fixes.
- OneDrive shortcut in File Explorer. Fixed a bug where the OneDrive shortcut in the File Explorer sidebar would stop responding to clicks if File Explorer was launched with administrator privileges.
- File name during permanent deletion. Fixed an issue where the confirmation dialog for permanent deletion displayed not the original file name, but its internal system name from the Recycle Bin.
How to install the update. Open the Settings menu, go to Windows Update, and click Check for updates. A computer restart is required to complete the installation.
| Feature / Change | Performance Increase/Decrease | Optimization | PC Speed | Gaming Optimization |
|---|---|---|---|---|
| Taskbar size setting | ⚪ No impact | 🟢 Low (+2% UI rendering efficiency by removing hidden settings lookup) | ⚪ No impact | ⚪ No impact |
| Smooth taskbar transitions | 🟡 Slight decrease (~1% GPU compositor load during animation) | 🟢 Low (hardware-accelerated animation smoothing) | ⚪ No impact | ⚪ No impact |
| Reorganization of the details pane in File Explorer | 🟢 Low (+5% faster metadata retrieval, reduced I/O waits) | 🟢 Medium (streamlined property fetching, better cloud thumbnail caching) | 🟢 Low (snappier file info display) | ⚪ No impact |
| Improvement of system sounds for dark theme | ⚪ No impact | 🟢 Very Low (refined audio pipeline for dark mode consistency) | ⚪ No impact | ⚪ No impact |
| OneDrive shortcut in File Explorer (fix) | 🟢 Very Low (eliminates hung UI thread when elevated) | 🟢 Low (fixed inter-process communication block) | 🟢 Very Low (no more unresponsive sidebar) | ⚪ No impact |
| File name during permanent deletion (fix) | ⚪ No impact | 🟢 Very Low (corrected recycle bin name resolution path) | ⚪ No impact | ⚪ No impact |
Official announcement on the Microsoft website.
The last 10 Windows updates:
| Update | Build | Version | Windows | Channel | Date |
|---|---|---|---|---|---|
| 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 |
| KB5124197 | 26220.9587 | 25H2 | Windows 11 | Beta | 2026-10-02 |
| KB5124193 | 26340.9596 | 26H2 | Windows 11 | Experimental | 2026-10-02 |
| KB5124166 | 26220.9568 | 25H2 | Windows 11 | Beta | 2026-09-25 |
| KB5124163 | 28020.3112 | 26H1 | Windows 11 | Beta | 2026-09-25 |