こんにちは、阿久津です。Microsoftのサポート文書KB2671501によると、Windows 8 Developer Previewの有効期限を延期する更新プログラムが公開されたそうです。そもそもWindows 8 Developer Previewの使用期限は、2012年3月11日(Windows 8 Server Developer Previewは同年4月8日：いずれも ...

Microsoft is taking its time with the boot certificate rollout, but you don't have to. Activate the latest UEFI CA 2023 right ...

Microsoft confirms systems without updated Secure Boot certificates will boot normally but lose some security protections.

There are various reasons why Windows does not start. The first assumption is a defect in the boot environment that prevents the system from starting. However, causes can also be a defective file ...

ブートマネージャーといえば、PC UNIXなどとWindows OSなどを1つのHDDでマルチブートさせる目的で使用したことがあるユーザーもいるだろう。今回、紹介するライフボートのLBブートマネージャー3(以下、BM3と略記)は、4つまでのWindows OSを起動時に切り替えて使用 ...

Microsoft is rolling out "Secure Boot Allowed Key Exchange Key (KEK) Update," which requires a system reboot to finish ...

Microsoft will use standard Windows 11 updates to keep Secure Boot working on existing PCs as the operating system's original certificates near their end. The company says Secure Boot certificates ...

Microsoft's first Secure Boot certificates will expire in June 2026. In order for systems with Secure Boot to remain bootable, they must receive updated certificates by then. “Prepare for the first ...