How to use Surface UEFI - Microsoft Support
Learn about Unified Extensible Firmware Interface (UEFI) features and how to access them on Surface Pro 4, Surface Book, and Surface Studio.
Windows Secure Boot certificate expiration and CA updates
Jun 26, 2025 · As an industry standard, UEFI Secure Boot defines how platform firmware manages the certificates, authenticates firmware, and how the operating system (OS) …
November 11, 2025—KB5068781 (OS Builds 19044.6575 and …
Nov 11, 2025 · This security update includes fixes and quality improvements that are part of the following updates: October 14, 2025—KB 5066791 (OS Builds 19044.6456 and 19045.6456) …
Windows Secure Boot Key Creation and Management Guidance
Aug 6, 2025 · For more information, see the following resources: Windows Secure Boot Key Creation and Management Guidance Microsoft Secure Boot open-source repository for the …
Windows 11 and Secure Boot - Microsoft Support
While the requirement to upgrade a Windows 10 device to Windows 11 is only that the PC be Secure Boot capable by having UEFI/BIOS enabled, you may also consider enabling or …
Windows Recovery Environment - Microsoft Support
Oct 14, 2025 · UEFI Firmware Settings: When using this option, your device restarts and takes you to the UEFI firmware settings screen, where you can configure various hardware settings, …
Comment utiliser l’UEFI de Surface - Support Microsoft
Découvrez les fonctionnalités de l’interface UEFI (Unified Extensible Firmware Interface) et la procédure pour y accéder sur les modèles Surface Pro 4, Surface Book et Surface Studio.
Disk Management in Windows - Microsoft Support
Use GPT if you have a modern system with UEFI firmware and need support for large drives and more than four partitions. Use MBR if you are working with older hardware or operating …
Frequently asked questions about the Secure Boot update process ...
Sep 15, 2025 · If Windows is already using the 2023-signed boot manager but the firmware is reset to defaults that don’t include the Windows UEFI CA 2023 certificate, Secure Boot will …
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 …