secure boot certificates

Microsoft released an out‑of‑band update on August 19, 2025—KB5066189—for Windows 11 devices on the 22621 and 22631 build families (OS Builds 22621.5771 and 22631.5771). The package is an optional, non‑security rollup that patches a regression introduced by the August 2025 monthly updates...

Microsoft released an out‑of‑band update on August 19, 2025—KB5066189 (OS Builds 22621.5771 and 22631.5771)—that quickly became the must‑install patch for Windows 11 22H2/23H2 devices affected by a regression introduced with the August security rollup; the update’s headline fix restores Reset...

Microsoft's recent servicing cycle for Windows Server 2022 ties together two urgent security themes: Microsoft has pushed a cumulative update (KB5063880) that carries fixes and quality improvements while reiterating critical remediation guidance for a Netlogon Remote Protocol hardening released...

Microsoft released the August 12, 2025 cumulative security update for Windows 11, version 24H2 — KB5063878 (OS Build 26100.4946) — a routine but important monthly package that bundles the latest cumulative fixes, updates to several AI components (targeted at Copilot+ devices), and an updated...

Microsoft released the August 12, 2025 cumulative security update for Windows 11, version 24H2 — KB5063878 (OS Build 26100.4946) — a combined LCU+SSU package that continues July’s quality fixes, delivers component updates for Copilot+ AI features, and reiterates a critical Windows Secure Boot...

Microsoft has shipped the August 12, 2025 cumulative security update for Windows 11, version 24H2 (KB5063878, OS Build 26100.4946), a routine Patch Tuesday release that combines the latest servicing stack update with the monthly cumulative update, patches a range of security issues, and contains...

Here is a summary of the July 22, 2025—KB5062663 (OS Builds 22621.5699) Preview update for Windows 11 version 23H2: Key Highlights 1. Secure Boot Certificate Expiration Notice Secure Boot certificates used by most Windows devices are set to expire starting June 2026. If not updated, some...

Here are the key details and highlights from the Microsoft support page for the July 22, 2025—KB5062663 (OS Builds 22621.5699) Preview update for Windows 11 version 23H2: Overview Release Date: July 22, 2025 Update Version: OS Builds 22621.5699 and 22631.5699 Applies To: Windows 11 version...

Microsoft has released Windows 11 KB5062633 for version 23H2, promising a focused set of bug fixes rather than new features, while also underscoring a critical warning about Secure Boot certificate expiration that enterprises—and attentive consumers—should not overlook. As an optional cumulative...

Microsoft has released KB5062839, a Setup Dynamic Update for Windows 11 version 24H2 and Windows Server 2025, dated July 22, 2025. This update enhances the Windows setup binaries and associated files utilized during feature updates, aiming to improve the reliability and efficiency of the...

Microsoft has issued an urgent warning to Windows users regarding the impending expiration of Secure Boot certificates, a critical component in the system's startup security. These certificates are set to expire starting in June 2026, potentially affecting the ability of personal and business...

Here is a summary of the update described in the Microsoft Support KB article for KB5062688 (Safe OS Dynamic Update for Windows 11, version 24H2 and Windows Server 2025, released July 8, 2025): Summary This update improves the Windows recovery environment (WinRE) for Windows 11 24H2 and...

Here is a summary of the KB5062693: Safe OS Dynamic Update for Windows 11, version 22H2 and 23H2, released on July 8, 2025: Summary Purpose: This update makes improvements to the Windows Recovery Environment (WinRE) in Windows 11, versions 22H2 and 23H2. Secure Boot Certificate Expiration...

Microsoft has released KB5062683, a Setup Dynamic Update for Windows 11 versions 22H2 and 23H2, dated July 8, 2025. This update enhances the Windows setup binaries and other files utilized during feature updates, aiming to improve the reliability and efficiency of the installation process. Key...

Here is a summary of the information in KB5062785: Setup Dynamic Update for Windows 11, version 24H2 and Windows Server 2025 (dated July 8, 2025): Overview KB5062785 provides a setup dynamic update targeting: Windows 11, version 24H2 (including SE, Home, Pro, Enterprise, Education, IoT...

Microsoft has released KB5062693, a Safe OS Dynamic Update for Windows 11 versions 22H2 and 23H2, dated July 8, 2025. This update enhances the Windows Recovery Environment (WinRE), ensuring a more robust and secure recovery process. Key Highlights of KB5062693: Windows Secure Boot Certificate...

In a significant stride towards maintaining and enhancing the security posture of Windows 11, Microsoft has released the July 2025 cumulative security update—KB5062553 (OS Build 26100.4652). This update specifically targets Windows 11 version 24H2, building upon prior improvements while...

With less than four months remaining before Windows 10 officially reaches its end of support, the march toward Windows 11 has taken on new urgency for IT leaders, businesses, and everyday users alike. The latest improvements arriving in June 2025 not only serve as enticements for those...

A quietly looming change is set to reshape the security landscape for countless Windows PCs: the soon-to-expire Secure Boot certificates, foundational to one of Windows 11’s most crucial system requirements. For everyday users and IT administrators alike, understanding the implications of this...

When preparing your organization's Windows ecosystem for a pivotal infrastructure update, few developments in recent years compare to the anticipated expiration of Secure Boot certificates in June 2026. Behind every modern Windows startup—whether it’s on an enterprise desktop, a home PC, or a...