windows security

Microsoft is using the Windows Security app to surface a deadline that has been quietly building for years: the original Secure Boot certificates issued in 2011 are now approaching expiration, and some devices will begin losing the ability to receive new boot-chain protections as early as June...

Microsoft is finally making Secure Boot certificate health visible in a place ordinary users can actually find: the Windows Security app. Starting in April 2026, Windows 11, Windows 10, and supported server builds will begin showing whether a device has received the newer 2023 Secure Boot...

Windows users are facing one of those quietly important security deadlines that rarely makes headlines until after the damage is done: Microsoft’s original Secure Boot certificates begin expiring in June 2026, and the company is now rolling out a new Secure Boot status dashboard inside the...

Microsoft’s latest Secure Boot move is less about a shiny new Windows Security badge than it is about preparing the Windows ecosystem for a long-planned certificate rollover that starts mattering in 2026. Beginning in April 2026, Windows Security will start surfacing a green, yellow, or red...

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’s Secure Boot certificate rollover is no longer a theoretical maintenance task tucked away in an enterprise playbook; it is now a deadline that affects millions of Windows PCs, and the stakes are higher than most users realize. The current Microsoft-issued Secure Boot certificates...

Starting in April 2026, Windows Home and Pro users are getting a much clearer view of something most people never think about until it breaks: Secure Boot certificate health. The Windows Security app now surfaces whether your device has received Microsoft’s newer 2023 Secure Boot certificates...

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...

Windows 11 is getting a fresh round of Insider-only refinements in Build 26300.8142, and this flight is less about flashy consumer features than about sharpening the platform’s underpinnings. Microsoft is using the Dev Channel to test Administrator Protection, a touchpad control for the...

Microsoft is about to do something that sounds small on paper but could reshape a corner of Windows security that has lingered far too long in a grey zone. Beginning with the April 2026 Windows security update, the company will stop trusting legacy cross-signed kernel drivers by default and move...

Windows 11’s first quarter of 2026 did not arrive with a single blockbuster redesign. Instead, Microsoft spent January through March shipping a cluster of quality updates that quietly made the OS more useful, more recoverable, and more secure. The headline additions are easy to spot...

Microsoft is tightening one of Windows’ oldest trust assumptions, and the fallout could reach far beyond security teams. Beginning with an April 2026 Windows 11 and Windows Server update, the company plans to remove default trust for kernel drivers that were signed through the long-retired...

Microsoft is preparing one of the most consequential Windows kernel trust changes in years, and it lands at the intersection of security hardening, enterprise compatibility, and Microsoft’s broader effort to make Windows 11 feel more reliable. The company plans to stop loading kernel drivers...

Most Windows users think “administrator” is the ceiling of local power on a PC, but Windows has always kept one account in reserve that sits above the normal admin experience. The built-in Administrator account exists on every Windows installation, and when it is enabled it can run applications...

Microsoft’s March 2026 security guidance includes CVE-2026-4437, a flaw described as a case where gethostbyaddr and gethostbyaddr_r may incorrectly handle a DNS response. The wording is brief, but it signals a bug in a long-standing reverse-lookup path that many applications still depend on for...

Microsoft’s March 2026 security guidance adds a subtle but important new DNS-related flaw to the long list of issues administrators need to track: CVE-2026-4438. The advisory describes a case where gethostbyaddr and gethostbyaddr_r can return invalid DNS hostnames, which sounds narrow at first...

Windows has a built-in feature called Dynamic Lock that uses a paired Bluetooth device—usually your phone—to automatically lock your PC when you walk away. The idea is simple: if your phone is no longer nearby, Windows assumes you’ve left and locks the session for you. It is one of those quietly...

CVE-2026-4224 and the XML parsing risk that should worry Windows admins Microsoft’s vanished CVE-2026-4224 page has left security teams with an uncomfortable gap: a title that points to a stack overflow while parsing XML with deeply nested DTD content models, but no public detail to anchor...

Microsoft’s Secure Boot certificate deadline is no longer a distant infrastructure footnote. The company has confirmed that the 2011-era Secure Boot certificates used across Windows devices begin expiring in June 2026, and it is warning that systems which fail to receive the newer 2023...

Windows edition choice is one of those deceptively small decisions that can shape everyday computing in surprisingly important ways, and the difference between Home, Pro, Education, and Enterprise is bigger than Microsoft’s surface-level marketing suggests. The key distinction is not speed...