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 …
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 …
October 28, 2025—KB5067036 (OS Builds 26200.7019 and …
Oct 28, 2025 · This non-security update for Windows 11, version 25H2 and 24H2 (KB5067036), improves functionality, performance, and reliability. To learn more about differences between …
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 …
KB5036210: Deploying Windows UEFI CA 2023 certificate to …
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 …
How to manage the Windows Boot Manager revocations for …
May 9, 2023 · Enter the device UEFI menu and navigate to the Secure Boot settings and turn it on. Check documentation from your device manufacturer for specifics on this process.
Updating Windows bootable media to use the PCA2023 signed …
Feb 4, 2025 · The PowerShell script described in this article can be used to update Windows bootable media so that the media can be used on systems that trust the “Windows UEFI CA …
Enable TPM 2.0 on your PC - Microsoft Support
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 & …
Troubleshoot Surface Pro Keyboard or Type Cover - Microsoft …
If the keys and touchpad are working correctly in UEFI, but not in Windows: The problem is likely with the software installed on the Surface, and you'll need to reinstall.