Windows 11 update Archives

Winsage

June 25, 2026

Windows 11 Secure Boot update released to all, hours ahead of expiry

Microsoft has begun rolling out the Secure Boot 2023 certificate update to eligible Windows 11 and Windows 10 PCs ahead of the expiration of the Microsoft Corporation KEK CA 2011 on June 24, 2026. This update enhances device targeting data for automatic Secure Boot certificate updates. Secure Boot is a firmware-level security feature that verifies digital signatures of boot components to prevent rootkits and bootkits. The certificates for Secure Boot were first issued in 2011, with subsequent expirations for related certificates occurring in June and October 2026. Users can check their Secure Boot certificate status through the Windows Security app or System Information. If a PC does not receive the update, it will still boot normally but will lose the ability to receive future boot-level security updates. Multiple restarts after updates are expected due to the Secure Boot certificate process. A new folder, C:WindowsSecureBoot, is not malware but is used for staging cryptographic certificate files. Windows 10 users enrolled in the Extended Security Updates program will also receive the Secure Boot update, while those not enrolled will not. The expiration of the KEK CA 2011 means Microsoft will not be able to sign new Secure Boot revocation payloads using the old key, but existing signed payloads will remain functional.

Winsage

June 24, 2026

Windows 11 Secure Boot update released to all, hours ahead of expiry

Microsoft has begun rolling out the Secure Boot 2023 certificate update for eligible Windows 11 and Windows 10 PCs ahead of the expiration of the original certificates on June 24, 2026. The update includes additional device targeting data to increase coverage for automatic updates. Devices receive the new certificates after demonstrating successful update signals. The original Secure Boot certificates were issued in 2011, with expiration dates set for June 24, 2026, June 27, 2026, and October 19, 2026. Microsoft has been distributing replacement 2023 certificates since 2024, with the June 2026 update expanding eligible devices significantly. Users can check their Secure Boot status through the Windows Security app or System Information. If a PC did not receive the update, it will still function normally but may not receive future boot-level security updates. Multiple restarts after updates are expected behavior, and the SecureBoot folder in Windows is not malware. Windows 10 users in the Extended Security Updates program are also receiving the Secure Boot update. The expiration of the Microsoft Corporation KEK CA 2011 on June 24 means no new Secure Boot revocation payloads can be signed with the old key, but existing signed payloads will continue to function.

Winsage

June 23, 2026

Microsoft Confirms Windows 11 26H2 Update for x86-64 PCs

Microsoft has confirmed the release of the Windows 11 update version 26H2, designed for PCs with x86-64 processors from Intel and AMD. Devices with Qualcomm Snapdragon Elite and NVIDIA RTX Spark processors will receive a separate update. Earlier this year, Windows 11 26H1 was introduced for Windows-on-Arm devices. Windows 11 26H2 is a minor update that shares the same code base as version 25H2, allowing for a seamless transition without a complete system file replacement. The update process is straightforward and will consolidate security and quality updates. Microsoft will provide security updates for Windows 11 versions 24H2, 25H2, and 26H2 for two years. Windows 11 Enterprise LTSC editions will offer stability by locking onto a specific kernel code base for security updates until a future date.

Winsage

June 16, 2026

Windows 11 update is breaking some PCs with boot and BitLocker issues

Windows 11 update KB5094126 (Build 26200.8655), released on June 9, 2026, has caused boot failures, blue screens, and BitLocker recovery prompts for users, particularly affecting business devices from HP and Dell, including models like HP EliteBook 840 G10 and Dell Precision 7530. The issues stem from changes in Secure Boot and EFI partition modifications, with insufficient EFI partition space leading to errors. A workaround involves disabling Secure Boot in BIOS. Additionally, users have reported disruptions with OneDrive and Microsoft Word integration, particularly in enterprise environments. Microsoft has not yet acknowledged these problems.

AppWizard

June 10, 2026

Windows 11’s new performance boosting Low Latency mode is now available, and here’s what it does

The latest Windows 11 update includes the Low Latency Profile feature, which enhances performance for certain applications by temporarily increasing CPU speed for brief intervals. Currently, only Microsoft's applications and native Windows 11 features can utilize this capability, but third-party applications may be able to in the future. The update, identified as KB5094126, is necessary to activate the feature, which operates quietly in the background. Users can verify the feature's functionality by ensuring the update is installed and can conduct tests to observe changes in CPU clock speed. Personal experiences with the feature show varying degrees of improvement in responsiveness, particularly on older systems.

Winsage

June 6, 2026

Microsoft released new Defender update for Windows 11, 10, Server ISO installations

Microsoft is rolling out updates for Windows Defender to protect users from newly discovered malware threats. These updates occur frequently, with a significant refresh every three months for Windows installation images (WIM and VHD) and ISOs. The recent Windows 11 update includes the latest definitions and addresses vulnerabilities from outdated anti-malware definitions in installation images. The latest security definitions were delivered through security intelligence update version 1.445.323.0, applicable to various platforms, including Windows 11 and several Windows Server versions. The update enhances the anti-malware client, engine, and signature versions to platform version 4.18.26040.7, engine version 1.1.26040.8, and security intelligence version 1.447.236.0. The most recent intelligence update is version 1.451.297.0, which improves threat detection against various malware types.

Winsage

June 1, 2026

Microsoft confirms Windows 11 update is failing on some PCs, explains if you need a workaround

Microsoft has identified the root cause of installation issues related to the May 2026 update for Windows operating system and is rolling out a solution through an optional update, KB5089573. The May 12, 2026, Patch Tuesday update (KB5089549) introduced enhancements but many users faced installation failures due to error code “0x800f0922,” indicating insufficient space on the EFI System Partition (ESP). The ESP is critical for boot files and typically occupies around 256MB. Users can check ESP storage using a specific command. Low ESP space can lead to update failures, particularly when it drops below 10MB. Microsoft has rolled back problematic code and provided a fix in the optional update KB5089573, which resolves ESP space issues and ensures future updates will proceed smoothly. Users are encouraged to install this update or wait for the next scheduled Patch Tuesday update on June 9, 2026.

AppWizard

May 28, 2026

New Windows 11 update will actually make your PC faster

The Windows 11 update "KB5089573" is designed to enhance PC efficiency and speed, focusing on performance improvements during app launches and core shell experiences like the Start menu and Search. It introduces "Low Latency Profiles" to maximize CPU frequency temporarily when an application is launched, making app launches up to 40% faster and core shell experiences up to 70% quicker. Reliability enhancements include improvements to the sign-in screen, File Explorer, touch gestures, Task Manager, and the ability to share Bluetooth connections with two devices. This update is part of Microsoft's K2 initiative to optimize Windows 11 based on user feedback, with plans for further enhancements in the future. The update is available for installation through the Windows Update tool.

Winsage

May 26, 2026

Microsoft rolls out Windows 11 KB5089573 update that makes your PC genuinely faster and more responsive

Microsoft has released the Windows 11 update KB5089573, which is available as an optional OS upgrade. This update includes a "Low Latency Profile" feature that enhances performance, making system flyouts appear up to 70% faster and application launches up to 40% quicker. The performance improvements will be rolled out gradually over the coming weeks. Additional features include the ability to share Bluetooth connections with two devices simultaneously, an option to name devices during setup, and updates to the Task Manager. Reliability improvements have been made in areas such as sign-in and lock screens, File Explorer, touch gestures, and theme changes within Settings. Users can manually install the update through Windows Settings or enable automatic updates.

Winsage

May 26, 2026

Windows 11’s latest patch is both the problem and the fix

Microsoft's KB5089549 update for Windows 11 addresses taskbar freezing and blank desktop displays but has installation issues due to error code 0x800f0922. The update aims to improve performance related to the taskbar and explorer.exe, with expected enhancements by May 2026. Users report taskbar freezing occurring after login or during desktop interactions. The update also creates a new folder on the user's computer. For those who successfully install it, performance improvements are noted, particularly after logging in. The update targets reliability during log-in, taskbar menu interactions, and Quick Access in File Explorer, aiming to enhance overall performance during the initial boot phase.