Microsoft Warns Unpatched Windows 11 PCs Face June 2026 Secure Boot Block (opens in new tab)

Covers Microsoft reveals what happens to Windows 11 PCs if you ignore the Secure Boot deadline in June 2026

Secure Boot, a feature first launched in 2011 with Windows 8, included an initial wave of certificates that are set to expire starting on June 24th. We've covered this before, but Microsoft is renewing its warning with the deadline now less than a month away. While an expired Secure Boot certificate will not prevent the PC from functioning

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