The Secure Boot certificates from 2011 expire in June of this year. Microsoft Defender helps in the enterprise environment.

Event ID 1033, accompanied by the error message—Potentially revoked boot manager was detected in EFI partition—is said to occur when the update of the ...

Event ID 1799 is the event logged when a boot manager signed by the Windows UEFI CA 2023 certificate (the latest and most secure) runs on startup. This means all the security measures are in place, ...

Commercially developed FinFisher malware now can infect Windows devices using a UEFI bootkit that it injects in the Windows Boot Manager. FinFisher (also known as FinSpy and Wingbird) is a ...

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Unless your computer is pretty old, it probably uses UEFI (Unified Extensible Firmware Interface) to boot. The idea is that a bootloader picks up files from an EFI partition and uses them to start ...

Microsoft has confirmed that the Windows 11 April 2026 cumulative update, KB5083769, can cause some systems to boot into BitLocker recovery after installation.

ESET researchers have analyzed a previously undocumented, real-world UEFI bootkit that persists on the EFI System Partition (ESP). The bootkit, which we’ve named ESPecter, can bypass Windows Driver ...