Windows 10 KB5078885 ESU out with Secure Boot 2023, replacing expiring Secure Boot certificates from 2011. But it's a staged roll out.
Microsoft has recently begun replacing expiring Secure Boot certificates on eligible Windows 11 systems running 24H2 and 25H2 ...
Microsoft is rolling out "Secure Boot Allowed Key Exchange Key (KEK) Update," which requires a system reboot to finish ...
XDA Developers on MSN
Microsoft's Secure Boot certificates expire in June 2026, but older PCs may never get the fix
Make sure you've updated before the deadline.
Microsoft confirms systems without updated Secure Boot certificates will boot normally but lose some security protections.
Microsoft’s May 2025 update for Windows 11 (KB5058405) caused an unexpected boot problem for users running versions 22H2 and 23H2. After installing that security patch, some systems couldn’t load a ...
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that, in June 2026, it would begin deprecating Secure Boot certificates of Windows systems from 2011, which were superseded by their 2023 counterparts.
A series of Windows 11 boot issues reported by users seems to have a root cause that stems from a bad December software update that was pushed out. According to Microsoft, a bad January update ...
Tenorshare社は11月19日（土曜）に4DDiG Windows Boot Genius V1.0.5をリリースしました。4DDiG Windows Boot Geniusはブルー/ブラックス ...
この不具合は、Windows 11バージョン25H2および24H2を実行するコンピュータに影響する。KB5074109をインストールすると起動時に停止コード「UNMOUNTABLE_BOOT_VOLUME」が発生し、ブラックスクリーン(BSoD: Black Screen of Death)を表示して起動に失敗する可能性がある。
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