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) …
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 …
Enterprise Deployment Guidance for CVE-2023-24932 - Microsoft …
Feb 13, 2025 · This document describes the deployment of the protections against the publicly disclosed Secure Boot security feature bypass that uses the BlackLotus UEFI bootkit tracked …
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 …
How to use the PC Health Check app - Microsoft Support
Oct 14, 2025 · PC Health Check app brings you up to date info on your Windows device health, helping you take action to improve your device performance and troubleshoot performance …
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, …
Enable Virtualization on Windows - Microsoft Support
Oct 14, 2025 · Learn how to enable virtualization through the UEFI (or BIOS) of your PC to run the Windows Subsystem for Android or Windows Subsystem for Linux.
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 & …
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.