secure boot

Microsoft's February Patch Tuesday closes a turbulent month for Windows with cumulative fixes that patch actively exploited flaws, roll forward January's out‑of‑band repairs, and — in a high‑impact operational move — continue a staged replacement of Secure Boot signing material on eligible...

Microsoft’s phased replacement of the aging Secure Boot certificate chain — the move from the 2011 trust anchors to the Windows UEFI CA 2023 family — is now visible in Event Viewer and Windows update notes, but you don’t need to panic. The logs many people see right now (TPM‑WMI entries such as...

Microsoft is using the regular Windows Update channel to rotate Secure Boot certificates on existing devices so that systems that rely on the original 2011 Microsoft Secure Boot certificates do not slip into a degraded security state when those certificates begin to expire between June and...

Microsoft has quietly begun a phased rollout that updates the digital certificates used by Secure Boot on Windows devices — a preemptive, ecosystem-wide refresh meant to prevent an impending expiration of long-lived 2011-era certificates and to preserve the integrity of boot‑time protections...

Microsoft’s warning that the Secure Boot certificates issued during the Windows 8 era are being retired in 2026 is not a hypothetical maintenance note—it’s a scheduled refresh of the cryptographic trust anchors that run before Windows even starts, and it has meaningful operational and security...

Microsoft has quietly started refreshing the Secure Boot certificate chain that underpins Windows platform security to prevent a looming trust break when Microsoft‑issued Secure Boot certificates first issued around 2011 begin to expire in mid‑2026. Background UEFI Secure Boot is the...

Microsoft has issued a coordinated warning: the original Secure Boot certificates that have underpinned Windows platform integrity since 2011 are reaching the end of their lifecycle, and a deliberate, ecosystem-wide refresh is required before mid‑2026 to avoid a progressive loss of...

Microsoft’s blunt deadline for Windows 10 users — upgrade before June or accept a “degraded security state” — is not hype: it reflects a real, measurable change in how the Windows boot chain will be trusted going forward, and it forces consumers and IT teams to choose between upgrading...

Microsoft’s timeline for the Secure Boot certificate refresh has moved from advance warning to an operational deadline: the long‑running Microsoft Secure Boot trust anchors issued in 2011 begin to expire in mid‑2026, and while Microsoft and OEMs have already built and started shipping a...

Microsoft has issued an urgent security warning for Windows 10 users after revealing that the original Secure Boot certificates—first shipped in 2011—will begin expiring in June 2026, and that affected devices will need updated certificates or an active Extended Security Updates (ESU) enrollment...

Microsoft has quietly sounded the alarm: the Secure Boot certificates that underpin the Windows platform’s pre-boot trust model are reaching the end of their planned lifespan this year, and organizations and consumers alike need to act now to avoid degraded boot security, compatibility problems...

Microsoft is quietly rolling out a replacement for long‑lived Secure Boot certificates first issued in 2011, and while Microsoft and OEMs say most modern PCs will receive the new 2023 certificate family automatically, a material minority of systems—especially unmanaged Windows 10 machines not on...

Microsoft has begun a coordinated refresh of the Secure Boot certificates that underpin Windows’ pre‑boot trust model, and the change will accelerate through March as Microsoft, OEMs and IT teams push a staged, telemetry‑gated rollout to keep devices secure before the legacy certificates begin...

Microsoft has quietly begun a coordinated refresh of the Secure Boot certificate chain that underpins modern Windows platform security, rolling new 2023-era certificate authorities into firmware and Windows updates so devices running Windows 10 and Windows 11 can continue to trust and receive...

Microsoft and the PC ecosystem are executing a quiet—but urgent—“generational refresh” of the cryptographic anchors that protect the very first code your PC runs, replacing Secure Boot certificates issued in 2011 with a new 2023 certificate family so billions of Windows PCs can keep receiving...

If your PC boots with Secure Boot turned on, there’s a maintenance deadline this year: the Microsoft-supplied Secure Boot certificates that have guarded Windows startup since 2011 are being replaced, and some of those original certificates begin expiring in June 2026 (with the remaining ones set...

Microsoft is rolling out a coordinated refresh of the Secure Boot certificates that have anchored Windows boot security since 2011, and if you run Windows on older hardware you should treat this as a time‑sensitive maintenance event: new 2023 certificate authorities will be injected through...

Microsoft’s warning that some Windows PCs will enter a “degraded security state” unless they receive updated Secure Boot certificates is not marketing fearmongering — it’s a technical deadline with practical consequences, and it demands action now from IT teams and home users alike. Background...

Microsoft and PC OEMs are coordinating a broad, time‑sensitive replacement of the Secure Boot certificates first deployed in 2011 — the original Microsoft UEFI/KEK/PCA certificates begin expiring in June 2026 (with a remaining production PCA following later in 2026). Microsoft has issued a...

Microsoft’s February 10, 2026 cumulative updates for Windows 11 quietly carried more than routine security fixes — they continued a staged rollout that will refresh the operating system’s Secure Boot certificate chain ahead of a looming expiry window that begins in June 2026. What looks like a...