‘Avoid Disruption’—Microsoft Updates Windows Before June Deadline

InnovationCybersecurity‘Avoid Disruption’—Microsoft Updates Windows Before June DeadlineByZak Doffman,Contributor.Forbes contributors publish independent expert analyses and insights. Zak Doffman writes about cybersecurity, surveillance and privacy.Follow AuthorMay 14, 2026, 02:57pm EDTMay 14, 2026, 02:58pm EDT--:-- / --:--This voice experience is generated by AI. Learn more.This voice experience is generated by AI. Learn more.Don't miss the deadline next month.SOPA Images/LightRocket via Getty ImagesMicrosoft has issued a critical security update for Windows 10 users — with a warning. Secure Boot certificates expire next month after 15 years. The new update "enables dynamic status reporting for Secure Boot states in Windows Security App" to help ensure affected PCs remain secure.In its release notes for KB5087544, the latest ESU update for hundreds of millions of Windows 10 PCs, Microsoft tells users to get ahead of the Secure Boot expiration. “To avoid disruption, we recommend reviewing the guidance and taking action to update certificates in advance."Don't miss the deadline next month.SOPA Images/LightRocket via Getty ImagesThis is the first time Secure Boot certificates have expired — even though they date back to 2011. All Windows 10 PCs will need new certificates, albeit only PCs enrolled for extended security updates (ESU) are eligible. Other PCs will be at risk next month, when the old certificates start to expire. Most Windows 11 PCs also need new certificates — except those sold in the last 2 years. Windows 11 PCs have also been updated with a revised security app to warn of issues ahead of the June deadline. Microsoft warns that if you can’t or don’t install new certificates, “this might affect the ability of certain personal and business devices to boot securely if not updated in time.” MORE FOR YOUThe new update also fixes a Remote Desktop Connection security warning, where a dialog “might render incorrectly in multi-monitor con...