Secure Boot Certificate updates: Guidance for IT professionals and ...
Jun 26, 2025 · Finally, the scheduled task updates the Windows boot manager to the one signed by the Windows UEFI CA 2023. Windows will detect that a restart is needed before the boot manager can …
Windows Secure Boot certificate expiration and CA updates
Jun 26, 2025 · What is Secure Boot? Secure Boot is a security feature in Unified Extensible Firmware Interface (UEFI) based firmware that helps ensure that only trusted software runs during a device's …
How do I use the BIOS/UEFI on Surface Pro 3 and earlier devices
Oct 14, 2025 · Learn about Unified Extensible Firmware Interface (UEFI) features and how to access them on Surface Pro models and Surface 3.
كيفية استخدام Surface UEFI - دعم Microsoft
تعرّف على ميزات الواجهة الموحدة للبرامج الثابتة الموسعة (UEFI) وكيفية الوصول إليها على Surface Pro 4 وSurface Book وSurface Studio.
Registry key updates for Secure Boot: Windows devices with IT …
Oct 14, 2025 · How these keys work together IT admins configure the AvailableUpdates registry value to 0x5944, which signals Windows to execute the Secure Boot key update and installation on the …
Forgot UEFI password for Surface - Microsoft Support
If you forgot your UEFI password, here's what you can do. Check with your IT administrator for the password If your device is managed by someone else, such as your IT department or a different …
Boot Surface from a USB device - Microsoft Support
How to use Surface UEFI. If you have had a Windows Insider build installed, you may need to first turn off and then turn on Secure Boot for the USB boot drive to be recognized.
How to fix touch issues on your Surface touchscreen
Unified Extensible Firmware Interface (UEFI) is a type of software that helps Windows communicate with your Surface’s hardware. Because UEFI operates independently of Windows, testing hardware in …
Surface UEFI の使用方法 - Microsoft サポート
Unified Extensible Firmware Interface (UEFI) 機能について説明し、Surface Pro 4、Surface Book、Surface Studio で UEFI 機能にアクセスする方法を示します。
Secure Boot DB and DBX variable update events - Microsoft Support
Jun 15, 2022 · This event is logged when the Microsoft UEFI CA 2023 certificate is added to the DB variable. The DB variable is used to add trust for Secure Boot components and is typically used to …