Certificate Expiration
The latest Certificate Expiration coverage — news, analysis, and updates from the WindowsNews.AI desk.
Microsoft Office for Mac, iPhone, and iPad Requires Critical License Certificate Update by July 2026 to Avoid Lockout
Microsoft has set a countdown clock for users of its Office apps on Apple platforms: install a licensing-certificate update before July 13, 2026, or risk losing access to core productivity tools. The...
Secure Boot Certificate Expiring in 2026: What Windows Users Need to Know
Microsoft's Secure Boot infrastructure faces a critical transition in 2026 when the current third-party UEFI CA certificate expires. This expiration will affect millions of Windows devices worldwide,...
Microsoft's New Secure Boot Dashboard Helps Users Prepare for June 2026 Certificate Expiration
Microsoft has introduced a new Secure Boot status dashboard within Windows Security, giving users a critical tool to monitor their system's boot security as a major certificate transition deadline...
Microsoft Adds Secure Boot Certificate Expiry Warnings to Windows Security for 2026 Transition
Microsoft is embedding Secure Boot certificate expiration warnings directly into the Windows Security app, giving users a clear visual indicator of their system's readiness for the 2026 certificate...
KB5081151 update targets Secure Boot cert expiry requiring IT coordination before June 2026
Microsoft released KB5081151, a Safe OS Dynamic Update for Windows 11 version 26H1, on March 26, 2026. This update arrives as organizations face a critical infrastructure deadline: the expiration of...
Windows 10 Secure Boot Certificate Expiration: Critical 2026 Deadline Looms
Microsoft has issued a critical warning for Windows 10 users that could render millions of devices unbootable if not addressed before 2026. The company is replacing the Secure Boot certificates that...
Secure Boot Certificate Expiry 2026: Critical Windows Update Guide & User Action Steps
A critical security deadline is approaching for millions of Windows PCs worldwide, with the Secure Boot certificates that authenticate trusted firmware components set to expire in mid-2026. This...
Microsoft's 2026 Secure Boot Renewal: Windows 10 ESU Devices Risk Boot Failures
Microsoft and the PC industry have quietly opened a narrow but critical window to prevent a pre-OS security gap this year: Windows will start rolling replacement Secure Boot certificates into device...
Fleet-wide Secure Boot certificate swap: IT verification and enrollment guide for the 2023 CA transition
Microsoft's upcoming Secure Boot certificate rotation represents one of the most significant security infrastructure changes for Windows devices in recent years, requiring IT administrators to verify...
Logitech macOS Certificate Crisis: Code Signing Failure & Windows Security Implications
A sudden and disruptive certificate expiry at Logitech this week has left Mac users unable to launch critical peripheral management software, revealing fundamental vulnerabilities in modern software...
Windows 11 Secure Boot Certificate Expires 2026: IT Action Guide & Community Concerns
Microsoft's August 2024 preview update for Windows 11 included what appeared to be routine quality improvements, but buried within the release notes was a critical operational alert that every IT...
Secure Boot Certificates Expire June 2026: What Windows 11 Users Need to Know
Microsoft's Secure Boot certificates, a cornerstone of Windows security, are set to begin expiring in June 2026, as highlighted in recent updates. This impending expiration affects millions of...