In June 2025, Microsoft announced that, in June 2026, it would begin deprecating Secure Boot certificates of Windows systems from 2011, which were superseded by their 2023 counterparts.
Microsoft has announced it will deliver new Secure Boot certificates via Windows Update starting March 2026 before 2011 certificates expire in June.
Microsoft this week released new dynamic updates for Windows 11 26H1, 25H2 and 24H2 under KB5077178, KB5077180, KB5077374, ...
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