Microsoft’s CA-2023 Secure Boot update broke PCs. Learn why UEFI firmware failed, how vendors reacted, and how to fix your boot issues.

Secure Boot has been used in PCs since 2011, but in recent years there have been reports of various issues with the feature.

Secure Boot is an industry standard for ensuring that Windows devices don’t load malicious firmware or software during the startup process. If you have it turned on—as you should in most cases, and it ...

Microsoft has made Windows 11 available for all users. Windows 10 users can upgrade their computers to Windows 11 for free, provided their computers meet the hardware requirements. One of these ...

Attackers can bypass the Secure Boot process on millions of Intel and ARM microprocessor-based computing systems from multiple vendors, because they all share a previously leaked cryptographic key ...

Secure Boot is one of the requirements for Windows 11. You cannot install Windows 11 until you enable Secure Boot in your BIOS. However, there are ways by which you ...

Some signed third-party bootloaders for the Unified Extensible Firmware Interface (UEFI) could allow attackers to execute unauthorized code in an early stage of the boot process, before the operating ...

A newly discovered vulnerability in the GRUB2 bootloader, dubbed BootHole, may threaten Linux and Windows machines using Secure Boot. Attackers who exploit it could interfere with the boot process and ...

Lenovo has fixed two high-severity vulnerabilities impacting various ThinkBook, IdeaPad, and Yoga laptop models that could allow an attacker to deactivate UEFI Secure Boot. UEFI Secure Boot is a ...