Windows Secure Boot certificates expire tomorrow. Don't ignore this deadline

PCWorld reports that Windows Secure Boot certificates expire on June 24th, affecting both Windows 10 and 11 systems receiving security updates. Users must install latest Windows updates to receive new certificates, as failure to update could cause serious boot failures. While the deadline isn't a hard cutoff, enabling Secure Boot now ensures automatic updates and enhanced protection against malware. On June 24th--that's tomorrow, as of this writing--Windows users will run into an important deadline: new Secure Boot certificates must be installed on all systems that use Secure Boot, the security feature that protects against various threats at startup. The first warning about updated certificates was issued back in January .