KB5083824


Microsoft has released cumulative update KB5083824 (Build 28020.1803) for Windows 11, version 26H1. This update is available for Insiders on the Canary Channel and represents a build belonging to the br_release development branch. Users on this channel will now receive updates for Windows 11, version 26H1 (Build 28020), which is activated on top of Windows 11, version 26H1 (Build 28000) using the Feature Enablement package KB5073122.

Canary Channel users should note that builds released to this channel represent the latest platform changes at early stages of development and are not tied to any specific Windows release. Features and functionalities included in these builds may never ship in the final version, as Microsoft tries different concepts and gathers feedback. Features may change, be removed, or be replaced, and some may never become available outside the Windows Insider program. Many features in the Canary Channel are rolled out using Control Feature Rollout technology. They first become available to a small group of Insiders, and then their availability expands as feedback is received and analyzed.

Installation via Windows Update: go to Settings > Windows Update and click Check for updates. A computer restart is required to complete installation. To update Windows 11 Build 28000 (Canary) to Build 28020.1803, you can also download update KB5083824 and install it manually using the links above.

Feature / Change Performance Impact Optimization Level PC Speed Impact Gaming Optimization
General system stability and quality improvements 🟢 +2–5% (fewer crashes, better resource handling) 🟢 Moderate system-wide optimization 🟢 Slightly faster in daily use 🟡 Minimal (indirect stability benefit)
Pen settings — stylus tail button options ⚪ No measurable impact ⚪ None ⚪ No change ⚪ No impact
Option to assign pen button to Copilot key action ⚪ No measurable impact 🟡 Minor workflow optimization ⚪ No change ⚪ No impact
Pen feedback via Feedback Hub ⚪ No impact 🟡 Minor (faster diagnostics) ⚪ No change ⚪ No impact
Reliability of continuous dictation (Win + H) 🟢 +1–3% (smoother voice input) 🟢 Improved input reliability 🟡 Negligible speed change ⚪ No impact
Developer Mode dialog updated to modern style ⚪ No impact ⚪ Cosmetic only ⚪ No change ⚪ No impact
Fix for sfc /scannow unnecessary error message 🟢 +1–2% (cleaner system checks) 🟢 Reduced false errors ⚪ No change ⚪ No impact

Find and Change Settings

Setting Where to find How to change
Pen settings Settings > Bluetooth & devices > Pen & Windows Ink Open Settings > Bluetooth & devices > Pen & Windows Ink. Adjust the stylus tail button options, including the new option to assign the pen button to launch the same application that opens when pressing the Copilot key.
Copilot key option for pen button Settings > Bluetooth & devices > Pen & Windows Ink Go to Settings > Bluetooth & devices > Pen & Windows Ink. Under the pen button options, select the option to launch the same application that opens when pressing the Copilot key.
Developer Mode dialog Settings > System > For developers Open Settings > System > For developers. Enable or disable Developer Mode. The dialog now matches the modern Windows 11 visual style.
Sending feedback about the pen Feedback Hub (Win + F) > Devices and drivers > Bluetooth — keyboards, mice, and pens Press Win + F to open Feedback Hub. Navigate to Devices and drivers > Bluetooth — keyboards, mice, and pens, then submit your feedback about the pen.
Continuous dictation reliability Voice input (Win + H) > Settings Press Win + H to open voice input. Open Settings and enable or disable the fluid dictation setting. Reliability improvements are applied automatically.
sfc /scannow error message Command Prompt / Terminal Run sfc /scannow in an elevated Command Prompt or Terminal. The unnecessary error message has been removed automatically; no user action is required.

Official announcement on the Microsoft website.

The last 10 Windows updates:

Update Build Version Windows Channel Date
KB5124006 28000.3086 26H1 Windows 11 Preview 2026-09-22
KB5124010 26200.9550 26H2 Windows 11 Preview 2026-09-22
KB5124138 28120.3032 26H1 Windows 11 Experimental 2026-09-18
KB5124140 26220.9492 25H2 Windows 11 Beta 2026-09-18
KB5124137 26340.9502 26H2 Windows 11 Experimental 2026-09-18
KB5129242 22631.7584 23H2 Windows 11 Stable 2026-09-14
KB5129236 19045.7727 22H2 Windows 10 Stable 2026-09-14
KB5129195 26300.9457 26H2 Windows 11 Stable 2026-09-14
KB5129194 28000.2956 26H1 Windows 11 Stable 2026-09-14
KB5124115 26220.9472 25H2 Windows 11 Beta 2026-09-11