KB5083635


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).

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

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