Windows 10: How do I move ESP - EFI SYstem Partition - from a partition to another

  1.    31 Dec 2017 #1

    How do I move ESP - EFI SYstem Partition - from a partition to another


    How do I move ESP - EFI SYstem Partition - from a partition at higher offset to another lower one, as was prepared ?

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    Many thankfulness for sincere helpful effort
      My ComputerSystem Spec

  2. topgundcp's Avatar
    Posts : 2,438
    Ubuntu14.04x64 MintMate17x64 Win10Prox64
       31 Dec 2017 #2

    First, re-create partition 2 to be EFI System, open Admin command and type:
    diskpart
    select disk 0
    select par 2
    delete par
    create par EFI =====> Re-create partition to be EFI System
    format fs=fat32
    assign letter=U
    exit

    Next, type:
    bcdboot C:\windows /s U: =====> will create a new BCD to boot from for new EFI System.

    REBOOT

    access boot menu, there will be 2 Windows Boot Managers, 1 for the first EFI just created, the other for the old EFI. Select the first one to boot from.

    Open Admin command again, type:
    diskpart
    select disk 0
    select par 6
    delete par override =====> this will delete the old EFI.
    exit

    NOTE: The order of Windows Boot Manager might be in reverse. If cannot delete par 6 (Old EFI) then reboot, select 2nd boot manager then try to delete partition 6 again.
    Last edited by topgundcp; 01 Jan 2018 at 01:32.
      My ComputerSystem Spec

  3.    31 Dec 2017 #3

    Next, type:
    bcdboot C:\windows /s U: =====> will create a new BCD to boot from for new EFI System.
    just read bcdboot /? reference... isn't it

    bcdboot C:\windows /s U /f UEFI ?
      My ComputerSystem Spec

  4.    01 Jan 2018 #4

    ESP was created but
    bcdboot C:\windows /s U: (or with /f UEFI)
    not works, info is still Hidden in DIskpart list vol or None in 3rd party GUI partition programs

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    start and login normally, no multi boot option

      My ComputerSystem Spec

  5. topgundcp's Avatar
    Posts : 2,438
    Ubuntu14.04x64 MintMate17x64 Win10Prox64
       02 Jan 2018 #5

    You must have done something wrong or did not follow exactly what I posted above. If done correctly, you should see 2 EFI System partitions and both can boot into Windows. From Boot Menu, you should see 2 Windows Boot Manager

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    Why did you use list volume instead of list partition ? you need to know which partition to delete.

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    Try again. Use the first Windows Boot Manager to boot. Once in Windows, delete the second Windows Boot Manager.
      My ComputerSystem Spec

  6.    02 Jan 2018 #6

    SOLVED !
    access boot menu, there will be 2 Windows Boot Managers, 1 for the first EFI just created, the other for the old EFI. Select the first one to boot from.
    just didn't realize what's actually access boot menu supposed to mean... it means get into bios firmware setting ! (press F2 of F10 or another Fn depends on H/W)

    Thanks so much. God blesses you.. ameen
      My ComputerSystem Spec


 

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