Home Computing News Microsoft If you’ve never heard of Secure Boot certificates, that’s by design — they work quietly in the background, and for most of the past 15 years, nobody’s had to think about them. That’s about to change. The original certificates that power one of Windows’ most fundamental security features are set to expire in June 2026 , and depending on which PC you’re running and which version of Windows you’re on, the fallout could range from a seamless automatic update to a security headache you’ll need to solve yourself. Your PC isn’t going to die, but it might get a lot less safe Secure Boot is what protects your machine during the boot process — before Windows even finishes loading. The certificates that underpin it are expiring, and while Microsoft has been pushing updated versions through Windows Update, not everyone is eligible to receive them automatically. Windows 11 users on modern hardware should be fine. Everyone else needs to pay attention.…