And even after that, it still loads some services in the background, which means it is still quite laggy until everything initializes properly. On a traditional hard disk, it can take well above one minute until the desktop shows up. Normally, Windows 10 takes a very long time to boot.Here's how to see if Secure Boot is enabled on your PC. It keeps your system secure, but you may need to disable Secure Boot to run certain versions of Linux and older versions of Windows. Modern PCs that shipped with Windows 8 or 10 have a feature called Secure Boot enabled by default.This includes WinPE 4 and higher, so modern Windows boot media can be used. Secure Boot requires Windows 8.0 or higher. Secure Boot is a security standard developed by members of the PC industry to help make sure that your PC boots using only software that is trusted by the PC manufacturer.Next I enabled the option in BIOS to install custom keys and disabled the option to install Microsoft keys as I don't use Windows on this laptop. I have prepared a full certificate chain (PK, KEK, DB) and signed by GRUB EFI binary with a key included in the DB.
Yesterday I have tried to finally enable secure boot using custom keys.
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