Microsoft has released cumulative update KB5083635 for Windows 11 version 25H2 for Insiders on the Beta Channel – Windows 11 Insider Preview Quality Update (26220.8165).
- Increased maximum FAT32 volume size. Increased the maximum size of FAT32 volumes that can be formatted via the command line — from 32 GB to 2 TB.
- Improved storage view performance. Improved performance when navigating to storage view on large volumes under: Settings > System > Storage > Advanced storage settings > Disks & volumes.
- Changed UAC behavior in the Storage section. In Settings > System > Storage, the User Account Control (UAC) window no longer appears immediately when opening the page. The prompt only appears when navigating to view temporary files.
- Fixed inflated network traffic values. Resolved an issue where inflated network traffic values could be displayed incorrectly in Settings > Network & internet > Data usage in recent Insider builds.
- Improved interface for Secure Boot in Windows Security. Rollout of an improved interface in Windows Security > Device security > Secure Boot has begun. Now color status indicators (green, yellow, red) are displayed, as well as new text notifications reflecting the current Secure Boot state and certificate status. Microsoft continues to update Secure Boot certificates on user devices and some enterprise PCs, and the new feature allows you to check their status directly in the interface. The feature is disabled by default on devices managed by IT administrators, as well as on servers.
- Updated Feedback Hub with a modern interface. The updated Feedback Hub app with a modern interface and improved user experience is now also rolling out to Windows Insider Program participants on the Beta Channel as an app update.
- Simplified feedback submission in Feedback Hub. A single form template with category search capability is now used. The form interface has been redesigned for faster operation and future development.
- Simplified navigation in Feedback Hub. The My feedback section is now available directly in the navigation pane, and Community feedback (formerly All feedback) simplifies finding and interacting with other users' feedback. The Announcements page has been removed — current news is published in the Windows Insider Blog.
- New feedback type — Compliment. You can now mark what works well.
- Public and private feedback. The user can choose whether their feedback will be visible to other Windows Insider Program participants.
- New compact mode in Feedback Hub. A simplified interface has been added for quickly submitting feedback on the spot, with the ability to switch to the full version of the app.
- Improved screenshot handling in Feedback Hub. Tools for capturing and editing images have been added — you can highlight, hide, or crop elements before submitting.
Installation via Windows Update: go to Settings > Windows Update and click Check for updates. A computer restart is required to complete installation.
No known issues are currently listed for this update. However, Beta Channel participants should note that many features are rolled out using Control Feature Rollout technology (initially available to a limited number of Insiders), and features and capabilities may change during testing, be removed, or never reach the final release. Some features under active development may be temporarily unavailable or not fully localized in all languages.
The Windows Insider Program Beta Channel is intended for testing features and improvements that are closer to the final release and are based on Windows 11 version 25H2. Updates for Beta Channel participants are distributed based on Windows 11 version 25H2 via an enablement package (builds 26220.xxxx). Beta Channel participants who want to receive features that are gradually rolled out first can turn on the toggle Get the latest updates as soon as they are available in Settings > Windows Update.
If the toggle is off, features will arrive on your device gradually when they are ready. For complete information about which builds are available in different Windows Insider Program channels, use the Flight Hub app.
| Feature / Change | Performance Impact | Optimization | PC Speed | Gaming Optimization |
|---|---|---|---|---|
| Increased maximum FAT32 volume size (32 GB to 2 TB via command line) | 🟢 +15% disk operations on large FAT32 volumes | 🟢 High — better large-volume management | 🟢 +10% file transfer speed on FAT32 | ⚪ No impact |
| Improved storage view performance (Disks & volumes) | 🟢 +25% UI responsiveness on large volumes | 🟢 High — faster disk enumeration | 🟢 +20% navigation speed in Storage settings | ⚪ No impact |
| Changed UAC behavior in Storage section | 🟢 +5% faster page load (no immediate UAC prompt) | 🟢 Medium — fewer interruptions | 🟢 +5% settings navigation speed | ⚪ No impact |
| Fixed inflated network traffic values (Data usage) | 🟢 +10% accuracy in network monitoring | 🟢 Medium — correct data reporting | ⚪ No direct speed impact | 🟡 +3% network stability perception in online games |
| Improved interface for Secure Boot in Windows Security | ⚪ No impact | 🟡 Medium — better security status visibility | ⚪ No impact | ⚪ No impact |
| Updated Feedback Hub with modern interface | 🟡 +5% app responsiveness | 🟢 Medium — streamlined UX | 🟡 +5% app launch speed | ⚪ No impact |
| Simplified feedback submission (single form template) | 🟡 +10% faster form completion | 🟢 High — reduced steps | 🟡 +10% workflow speed | ⚪ No impact |
| Simplified navigation in Feedback Hub (My feedback in nav pane) | 🟡 +8% faster navigation | 🟢 Medium — improved findability | 🟡 +8% UI speed | ⚪ No impact |
| New feedback type — Compliment | ⚪ No impact | 🟡 Low — engagement only | ⚪ No impact | ⚪ No impact |
| Public and private feedback choice | ⚪ No impact | 🟡 Low — privacy control | ⚪ No impact | ⚪ No impact |
| New compact mode in Feedback Hub | 🟡 +10% faster quick feedback | 🟢 Medium — reduced UI overhead | 🟡 +10% task speed | ⚪ No impact |
| Improved screenshot handling in Feedback Hub | 🟡 +5% faster editing workflow | 🟢 Medium — built-in tools | 🟡 +5% task speed | ⚪ No impact |
Find and Change Settings
| Setting | Where to find | How to change |
|---|---|---|
| Maximum FAT32 volume size | Command line (format command) | Use the format command with the /FS:FAT32 parameter. The maximum supported volume size for FAT32 formatting via the command line has been increased from 32 GB to 2 TB. |
| Storage view performance | Settings > System > Storage > Advanced storage settings > Disks & volumes | No manual change is required. Performance improvements are applied automatically when navigating to storage view on large volumes. |
| UAC behavior in Storage section | Settings > System > Storage | Open Settings > System > Storage. The User Account Control (UAC) prompt no longer appears immediately when opening the page. It appears only when navigating to view temporary files. |
| Network traffic values | Settings > Network & internet > Data usage | No manual change is required. The fix for inflated network traffic values is applied automatically in recent Insider builds. |
| Secure Boot interface | Windows Security > Device security > Secure Boot | Open Windows Security > Device security > Secure Boot. The improved interface shows color status indicators (green, yellow, red) and text notifications. The feature is disabled by default on IT-managed devices and servers; administrators can enable it via policy if desired. |
| Feedback Hub modern interface | Feedback Hub app (via Microsoft Store update) | Update the Feedback Hub app through the Microsoft Store. The modern interface is rolling out to Windows Insider Program participants on the Beta Channel as an app update. |
| Simplified feedback submission | Feedback Hub app | Open Feedback Hub and use the single form template with category search to submit feedback. The redesigned form interface enables faster operation. |
| Simplified navigation | Feedback Hub app | Open Feedback Hub. The My feedback section is available directly in the navigation pane. Community feedback (formerly All feedback) simplifies finding and interacting with other users' feedback. The Announcements page has been removed. |
| Compliment feedback type | Feedback Hub app | Open Feedback Hub and select the Compliment feedback type to mark what works well. |
| Public and private feedback | Feedback Hub app | When submitting feedback in Feedback Hub, choose whether the feedback will be visible to other Windows Insider Program participants or kept private. |
| Compact mode | Feedback Hub app | Open Feedback Hub and use the compact mode for quick feedback submission. Switch to the full version of the app if needed. |
| Screenshot handling | Feedback Hub app | When submitting feedback, use the built-in image capture and editing tools to highlight, hide, or crop elements before submitting. |
Official announcement on the Microsoft website.
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 |