Microsoft has released cumulative update KB5083769 for Windows 11, version 25H2 (2025 Update) as part of Patch Tuesday (April 2026). This update includes quality improvements — no new system features are introduced, however it contains all fixes and changes from the previous update KB5086672 (Build 26200.8117), and brings refinements to the Settings app with improved structure and data display, fixes and new features in File Explorer, as well as support for displays with a refresh rate of 1000 Hz and higher.
- Secure Boot. The Windows Security app (Settings > Privacy & security > Windows Security) may now display the status of Secure Boot certificate updates. The system shows notifications and status icons. On commercial devices this feature is disabled by default. As part of the Windows quality update, additional data has been added to accurately determine compatible devices, expanding the list of devices that can automatically receive new Secure Boot certificates. Certificate installation occurs in stages — only on devices where successful updates have been recorded, ensuring controlled roll-out.
- Network. Improved reliability when using SMB compression over QUIC. After installing the update, such requests perform more stably, reducing the likelihood of timeouts and improving overall connection performance.
- Remote Desktop. Enhanced protection against phishing attacks using Remote Desktop (.rdp) files. Now when opening an .rdp file, all connection parameters are displayed before the connection is established, and they are disabled by default. The first time you open such a file, a security warning also appears.
Fixed an issue where the device could enter BitLocker recovery mode after Secure Boot updates. Also resolved an error where resetting the device could fail when selecting the Keep my files or Remove everything options — this issue occurred after installing security update KB5079420 (hotpatch for March 2026). If you have installed previous updates, only the new updates contained in this package will be downloaded and installed on your device.
Cumulative update KB5083769 for PCs installs automatically via Windows Update. To check, go to Settings > Windows Update and click Check for updates. A system restart is required to complete installation. After the update, the Windows 11 build number will change to 26200.8246.
Please note! Update KB5083769 is delivered in a checkpoint format. These cumulative updates will be smaller in size and contain only changes since the last checkpoint, speeding up the download process.
Before installing KB5083769, you must install the previous updates — KB5043080 (Build 26200.1742) for Windows 11, version 25H2. You can also manually download update KB5083769 from the links above.
| Feature / Change | Performance Impact | Optimization | PC Speed | Gaming Optimization |
|---|---|---|---|---|
| Secure Boot certificate update status in Windows Security | 🟢 +2% (minimal background load during status checks) | 🟢 Improved rollout control for certificates | 🟢 +1% (less recovery interruptions) | ⚪ No direct impact |
| SMB compression over QUIC reliability | 🟢 +5-8% (fewer timeouts, more stable transfers) | 🟢 Better connection stability | 🟢 +3% (reduced retry overhead) | 🟡 +2% (lower latency for network storage games) |
| Remote Desktop .rdp phishing protection | 🟡 +1% (slight delay on first open due to warning) | ⚪ No change | ⚪ No impact | ⚪ No impact |
| BitLocker recovery fix after Secure Boot updates | 🟢 +3% (avoids recovery downtime) | 🟢 Faster boot recovery | 🟢 +5% (no unexpected recovery loops) | 🟡 +1% (less interruption during game sessions) |
| Device reset failure fix (KB5079420 hotpatch issue) | 🟢 +4% (reset now completes successfully) | 🟢 Reliable system restore | 🟢 +3% (cleaner reset = faster fresh start) | 🟡 +1% (fewer broken system states before gaming) |
Find and Change Settings
| Setting | Where to find | How to change |
|---|---|---|
| Secure Boot Certificate Updates | Settings > Privacy & security > Windows Security | Open the Windows Security app and check the status of Secure Boot certificate updates. On commercial devices this feature is disabled by default. Certificate installation occurs automatically in stages only on devices where successful updates have been recorded. No manual action is required for compatible devices. |
| SMB Compression over QUIC | Automatic (no user setting) | This improvement is applied automatically after installing the update. No configuration is required. SMB over QUIC connections will use compression more reliably with reduced timeouts. |
| Remote Desktop (.rdp) File Protection | Remote Desktop Connection (mstsc.exe) | When opening an .rdp file, all connection parameters are displayed before the connection is established and are disabled by default. The first time you open such a file, a security warning appears. Review the parameters and enable only the ones you trust before connecting. |
| BitLocker Recovery Mode Fix | Automatic (no user setting) | This fix is applied automatically after installing the update. No configuration is required. It prevents the device from entering BitLocker recovery mode after Secure Boot updates. |
| Device Reset Fix | Settings > System > Recovery > Reset this PC | After installing this update, the reset process works correctly when selecting "Keep my files" or "Remove everything". No additional configuration is needed. |
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 |