May i know why determines the items displayed in the Boot Sequence List? The list below of Dell Vostro 14 5490;
What is Windows Boot Manager? Does it important to have this item? If yes, why this item is not displayed in the list after I upgraded my boot M.2 NVMe SSD?
If you've installed Windows in UEFI mode to your hard or solid state drive, yes - the Windows boot manager will be there, and is required to boot the system.
If you're running some other OS boot manager (grub, etc.), then no.
@BobbyWFS Windows Boot Manager would be listed in the documentation because Dell only supports Windows on this system, and since it boots in UEFI mode, a UEFI installation of Windows will cause a boot entry called Windows Boot Manager to appear in your boot order. UEFI boots in a very different way from Legacy BIOS when it comes to booting from local storage. On BIOS systems, you'd just choose to boot from "Hard drive 0" or whatever. UEFI boot options, which you'd see if you clicked that "Add Boot Option" button mentioned in the documentation, involve providing a PATH to a specific bootloader FILE on a specific partition of a specific disk. When Windows installs onto your system, it registers the path to the Windows Boot Manager bootloader file into your UEFI firmware, and that's how it gets there and why it's called Windows Boot Manager rather than just "Your SSD name".
I cloned the original 512GB Hynix M.2 SSD to Samsung 970EVO SSD. Cloning process using the Samsung Data Migration SW. Then I swapped the Hynix with 970EVO.
The system able to boot up and work as per normal. Then I observed in the BIOS setup as shown below, where the Windows Boot Manager was not listed in the Boot Option any more, which worries me will there be any consequences in the future operation?
U2CAMEB4ME
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Posted June 17th, 2020 07:00
Welcome to the Dell Community @BobbyWFS
https://www.lifewire.com/windows-boot-manager-bootmgr-2625813#:~:text=Definition%20of%20Windows%20Boot%20Manager%20(BOOTMGR)&text=It%20helps%20your%20Windows%2010,continue%20the%20Windows%20boot%20process.
Best regards,
U2