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 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 turning Secure Boot …
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 · As an industry standard, UEFI Secure Boot defines how platform firmware manages the certificates, authenticates firmware, and how the operating system (OS) interfaces with this process.
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 …
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.
Surface Secure Boot Certificates - Microsoft Support
The table below shows which devices have the updated certificates already present in UEFI (and as of which version, if applicable) and updated recovery image status.
Enable TPM 2.0 on your PC - Microsoft Support
Oct 14, 2025 · If you need to enable TPM, these settings are managed via the UEFI BIOS (PC firmware) and vary based on your device. You can access these settings by choosing: Settings > Update & …
KB5036210: Deploying Windows UEFI CA 2023 certificate to Secure …
Introduction Windows updates released on and after February 13, 2024 include the ability to apply the Windows UEFI CA 2023 certificate to UEFI Secure Boot Allowed Signature Database (DB). Updating …
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 recommended …