secure boot certificates

Microsoft released KB5089591 on May 12, 2026, as a Safe OS Dynamic Update for Windows 11 version 26H1, delivering improvements to the Windows Recovery Environment while repeating its warning that Secure Boot certificates on most Windows devices begin expiring in June 2026. The update itself is...

Google is pitching ChromeOS Flex as a free way for Windows 10 users to keep aging PCs useful after Microsoft’s October 2025 support cutoff, as Secure Boot certificate changes beginning in June 2026 add another deadline for unsupported machines. The pitch is simple: do not replace the hardware if...

If a Windows 11 PC restarts two or three times while installing the April 2026 update or later cumulative updates, Microsoft says the likely cause is a Secure Boot certificate refresh being applied during Windows Update, not a failing motherboard, broken SSD, or botched installation. That...

Microsoft will begin escalating Windows Security warnings on May 13, 2026 for Windows 10 and May 16, 2026 for Windows 11 when PCs still lack updated Secure Boot certificates needed before the original 2011 trust certificates start expiring in June. This is not another cosmetic Windows Update...

Microsoft says Windows 11 updates KB5083631 and KB5083769 may make some PCs restart one extra time during installation because Windows Update is applying new Secure Boot certificates, a phased maintenance step ahead of the original 2011 certificates beginning to expire in late June 2026. That...

Microsoft is quietly making one of the most consequential Windows security shifts in years, and the timing could hardly be more important. As April 2026 Patch Tuesday lands with multiple critical fixes and at least one actively exploited zero-day, Microsoft is also beginning the long-awaited...

Microsoft’s April 2026 security wave is more than another routine Patch Tuesday. It marks a meaningful shift in how Windows presents and protects one of the most sensitive layers of the platform: the boot chain. At the same time, Microsoft is shipping a fix for a currently exploited SharePoint...

Microsoft’s April 2026 Patch Tuesday has delivered a familiar kind of update with unusually far-reaching consequences: KB5083769 for Windows 11 24H2 and 25H2. The package advances devices to builds 26100.8246 and 26200.8246, respectively, and folds in the latest security fixes, quality...

Windows 11’s April 2026 Patch Tuesday update, KB5082052, arrives as one of those monthly releases that looks routine on the surface but carries outsized importance for reliability, security, and the platform’s next major trust transition. Microsoft says the cumulative update for Windows 11...

Microsoft’s April 2026 Windows servicing wave is more than another Patch Tuesday; it is turning into a platform-level reset for how Windows handles trust, visibility, and user control. The latest change Microsoft is rolling out centers on Secure Boot certificate expiration, a quietly historic...

Microsoft’s April 14, 2026 Safe OS Dynamic Update for Windows 11 versions 24H2 and 25H2 lands in the middle of a broader, unusually important Windows servicing cycle. On the surface, KB5083826 is a WinRE-focused update, but the timing matters: Microsoft is also pushing administrators to prepare...

Microsoft has published KB5083817, a Safe OS Dynamic Update for Windows 11, version 26H1, dated April 14, 2026, signaling another maintenance pass over the Windows recovery and setup experience rather than a flashy feature drop. The update arrives against the backdrop of Microsoft’s increasingly...

Microsoft’s April 2026 Patch Tuesday release for Windows 11 is now live, and the headline update for versions 25H2 and 24H2 is KB5083769, which advances the operating system to build 26200.8246 for Windows 11 25H2 and build 26100.8246 for Windows 11 24H2. This is a mandatory security update, it...

Microsoft has done something small on the surface but important in practice: it is giving Windows users a clearer heads-up about the Secure Boot certificate transition that has been looming since the company first warned about it in 2024. The new Windows Security indicators are meant to tell...

Microsoft has released KB5083990, a Setup Dynamic Update for Windows 11, version 26H1, and the timing matters as much as the update itself. Arriving on March 26, 2026, it lands just as Microsoft is widening its messaging around the June 2026 Secure Boot certificate expiration that could affect...

Microsoft’s latest setup dynamic update for Windows 11, KB5081494, arrives as another small but strategically important piece of the company’s ongoing servicing machinery for Windows 11, version 24H2 and 25H2. In practical terms, these updates do not add flashy end-user features; they refine the...

Microsoft’s March 26, 2026 Safe OS Dynamic Update for Windows 11 version 26H1, tracked as KB5081151, lands at a moment when a much bigger platform transition is coming into view: the June 2026 Secure Boot certificate expiration. In practical terms, this is not just another maintenance package...

Microsoft is leaning hard into a commitment to quality for Windows 11, and the latest March 2026 update cycle shows why that messaging matters. The company is no longer selling monthly servicing as just a security chore; it is positioning quality updates as the mechanism that keeps Windows 11...

Secure Boot is now entering one of the most consequential maintenance cycles in the modern Windows era, and Microsoft’s latest support guidance makes that clear in unusually direct terms. The company says Secure Boot configuration settings delivered through Microsoft Intune MDM are currently...

Microsoft’s quietly published February 24, 2026 platform updates — KB5079271 (a Setup Dynamic Update) and KB5079270 (a Safe OS / WinRE Dynamic Update) — target the under‑the‑hood plumbing that runs before Windows fully boots and during feature upgrades, and they carry an urgent operational...