From PC World: Microsoft has recently begun replacing expiring Secure Boot certificates on eligible Windows 11 systems running 24H2 and 25H2, according to a report by BleepingComputer. Update: On February 10, Microsoft confirmed plans to update Secure Boot certificates through the usual Windows update process.
Secure Boot is an important security feature that prevents malicious software from running during system startup. It is part of Windows’ UEFI/BIOS and compares the digital signatures of software with specific keys stored in the system.
Microsoft warned back in November that the Secure Boot certificates for most Windows devices currently in use will expire in June 2026. IT administrators in particular should therefore act soon to prevent problems with affected devices.
“Without updates, Windows devices with Secure Boot enabled run the risk of not receiving security updates or trusting new boot loaders, which
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