Windows’ original Secure Boot certificates expire in June—here’s what you need to do

Secure Boot has relied on the same security certificates to verify bootloaders since 2011, during the development cycle for ...
Ars Technica

Microsoft patches Secure Boot flaw, but won’t enable fix by default until early 2024

It sounds to me like claiming that all old Windows versions will be unbootable is an overstatement. Rather, it's most likely the case that you won't be able to boot old media when Secure Boot is ...
ZDNet

Will your Mac boot 64-bit Snow Leopard by default? Not unless it's an Xserve

If the current developer seed (build 10A432) of Snow Leopard is indeed the Golden Master version (as has been highly rumored) only Xserves will be able to boot into 64-bit version of Mac OS 10.6 by ...
Indiatimes on MSN

How to enable secure boot and TPM 2.0 to play Highguard on PC

Highguard requires Secure Boot and TPM 2.0 to run on PC. This guide shows how to check system status, enable both features in BIOS, and explains why the game’s anti-cheat depends on these security ...