Microsoft has recently begun replacing expiring Secure Boot certificates on eligible Windows 11 systems running 24H2 and 25H2 ...
Make sure you've updated before the deadline.
Microsoft confirms systems without updated Secure Boot certificates will boot normally but lose some security protections.
In 2012, an industry-wide coalition of hardware and software makers adopted Secure Boot to protect Windows devices against the threat of malware that could infect the BIOS and, later, its successor, ...