Cybersecurity
How to Check if Your PC Has the New Secure Boot 2023 Certificates (Windows UEFI CA 2023)
Microsoft's three original Secure Boot certificates (issued in 2011) begin expiring in June 2026. Windows is automatically rolling out the replacement 2023 certificates (Windows UEFI CA 2023, Microsoft UEFI CA 2023, KEK 2K CA 2023) via Windows Update. This guide shows you exactly how to check if your Windows 10 or 11 PC has already received the new certificates — using one PowerShell command.
