Windows 11 April update now reveals if Secure Boot 2023 certificate is applied to your PC

The Windows 11 April 2026 Update introduces the ability to check if the Secure Boot 2023 certificate is applied to your PC, crucial for protecting against boot-level malware. Microsoft confirms that older certificates will be replaced with Secure Boot 2023 via Windows Update. The Windows Security app now displays the Secure Boot certificate status under the 'Device Security' tab, ensuring users can easily verify if their certificates are updated. The update is rolling out gradually and should be available on most PCs by the end of April 2026. Users can check their Secure Boot status in Windows Security to ensure their devices are fully protected.