Microsoft's Windows Secure Boot certificates just expired – here's what you need to do

Asus has confirmed that all consumer PCs will receive the update automatically through Windows Update. Users can also check ...
Windows Latest

OEMs reveal Windows 11 Secure Boot fix after deadline passes, here’s how to update your PC

HP, Dell, ASUS, Lenovo, MSI and Acer have published Secure Boot certificate guides. Here's what each PC manufacturer says you ...

A crucial Windows security certificate just expired - how to check your PC

A crucial Windows security certificate just expired - how to check your PC ...
Excite エキサイト

Windowsのセキュアブート証明書、2026年6月に更新期日 未対応環境は ...

2011年に導入されたWindowsのオリジナルのセキュアブート証明書がライフサイクルの終わりに近づき、2026年6月下旬から順次失効する。多くのユーザーはWindows Updateを通じて自動的に移行される見通しだが、未更新のままだと、将来的にセキュリティ脆弱性に ...
マイナビニュース

セキュアブートはなぜ必要なのか

セキュアブートは、PCの起動シーケンスにUEFI(Unified Extensible Firmware Interface：ユニファイド・エクステンシブル・ファームウェア・インタフェース)の仕組みを利用するデバイスにおいて、オペレーティングシステムの読み込みに使用されるブートローダー(EFI ...
Forbes

‘Reboot Your PC’—Microsoft Changes ‘Most Windows Devices’ In June

This voice experience is generated by AI. Learn more. This voice experience is generated by AI. Learn more. All change for Windows Updated on May 18 with new detail about the new folder Microsoft has ...
Forbes

Microsoft Changes Windows Security After 15 Years—Update By ‘End Of April’

This voice experience is generated by AI. Learn more. This voice experience is generated by AI. Learn more. Check your PC by the end of this month. This has never happened before. Microsoft is ...
MSN による配信

Windows 11 Secure Boot Update Replaces Expired 2011 Certificates

Certificate Expiration: The KEK CA 2011 certificate expired on June 24, 2026, stopping unpatched systems from receiving new Secure Boot revocations. Trust Chain Preservation: The update replaces 2011 ...