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Secure Boot

【2025年8月】Windowsエラー「SBATデータの確認に失敗しました」と出たときの正しい対処法

Windows 11を起動しようとした際に、突然「シムSBATデータの確認に失敗しました」「Secure Boot Image failed to verify with SBAT policy」などのエラーメッセージが表示されたことはありませ […]

Hello! This article explains what to do when your Windows PC suddenly asks for a BitLocker recovery key after an update. If y […]

【注意喚起】Secure Bootの証明書が期限切れに！オフラインPCは要注意｜2026年6月問題を徹底解説「ある日突然、PCが起動しなくなった」——2026年6月以降、Secure Boot証明書の期限切れによって、そんな事態が現実になる可能性が […]

Have you encountered multiple errors on your Windows PC like: These seemingly separate problems are often closely connected, […]

KB5060533 is a security update for Windows 11 that was distributed in June 2025. This update includes an important enhancemen […]

Why Can’t I Update Windows 11? Causes and Solutions [July 2025 Edition] Have you encountered a strange message like “Your ver […]

Introduction Main explanation: In the summer of 2025, Microsoft’s Windows 11 version 24H2 has increased its hardware co […]

Introduction As Windows 10 reaches its official end of support on October 14, 2025, many users are wondering what to do next: […]

Last month, I saw a strange message on my Windows 11 Pro system: “Your version of Windows has reached end of service.&# […]

Introduction You just updated your Windows 11 system, or upgraded to the new 24H2 version — and suddenly you’re greeted with […]