PCWorld reports that Microsoft is rolling out critical Secure Boot certificate updates for Windows 11 systems to replace certificates expiring in June 2026. Without these updates, older Windows 11 PCs ...

Windows 10 and Windows 11 rely on three security certificates that begin expiring from June 2026, with additional expirations later in 2026. Microsoft is treating this as a broad, ecosystem-level ...

The company now says the issue is fully resolved in the Windows 11 KB5077181 update released during the February 2026 Patch Tuesday and later updates. "This issue is fully resolved in the Windows ...

Windows 11 users are locked out of their systems after installing update KB5077181, facing endless restart loops and network failures. The security update, released February 10 for both Windows 11 ...

In June 2025, Microsoft announced that, in June 2026, it would begin deprecating Secure Boot certificates of Windows systems from 2011, which were superseded by their 2023 counterparts.

Microsoft will begin delivering new Secure Boot certificates via Windows Update in March 2026. The update targets millions of PCs before the original 2011 certificates begin expiring in June. The move ...

Microsoft will use standard Windows 11 updates to keep Secure Boot working on existing PCs as the operating system's original certificates near their end. The company says Secure Boot certificates ...

If you’ve checked Event Viewer recently, some new TPM-WMI errors about Secure Boot certificates might have popped up. Don’t worry, you’re not alone. Many Windows 11 users are seeing these logs appear ...

PCWorld explains how Safe Mode serves as a critical troubleshooting tool when Windows fails to boot by loading only essential system components. Safe Mode enables users to identify problematic drivers ...

In brief: Secure Boot was originally introduced with Windows 8 as a firmware-based security feature designed to protect the OS from potentially malicious boot code. After more than 15 years, the ...

Microsoft said it has begun rolling out new Secure Boot security certificates, ahead of a late June 2026 expiration deadline that affects virtually every Windows device globally. The certificates, ...