Windows 10: bcdedit, bcdboot and bootrec issues in Windows 10.

I needed to edit the EFI default boot using bcdedit, but it gave me the error message:"The boot configuration data store could not be opened. The requested system cannot be found."I tried recreating the EFI partition from a bootable Windows USB using the command:bcdboot d:\windows /c /s S: /f ALLwhere S: is the assigned letter to the EFI partition that was previously formatted in FAT32.The command successfully created the EFI partition, but at boot bcdedit still gave me the same error.I then tried fixing the issue using the following commands:bootrec /fixmbrbootrec /fixbootbootrec /scano

:)

 

when i rebuild bcd,run bcdedit /export c:\bcdbackup,An error occurred

an ERROR IS The storage export operation has failed and the system cannot find the specified FILE because when laptop startup,screen display Not connected or unable to access the required device Error code 0Xc000000e but，i run bcdedit /export d:\bcdbackup,The screen shows that the operation was successful I run these commands step by step 1.bootrec /fixmbr 2.bootrec /fixboot 3.bootsect /nt60 sys 4.bootrec /fixboot 5.bcdedit /export c:\bcdbackup 6.attrib c:\boot\bcd -h -r -s 7.ren c:\boot\bcd bcd.old 8.bootrec /rebuildbcd An error occurred in the fifth step i use diskpart and list volume Disk C is only 260M, Disk H is the system disk, Disk D is a removable disk so What command should I enter in the fifth step

 

Windows 10 bootrec /fixboot access denied issue STILL

I have done these steps several times to no avail:

Windows 10 Installation Media:

1. Insert the Media (DVD/USB) in your PC and restart.
2. Boot from the media.
3. Select Repair Your Computer.

Select Troubleshoot.

1. Choose Command Prompt from the menu:

Type in the command:

Diskpart

Type in the command:

List disk (Note which disk is your Boot drive number mine is 0)

Type in the command:

Sel disk 0

Type in the command:

List vol (Note which volume is the EFI partition mine is 4)

Type in the command:

Sel vol 4

Type in the command:

assign letter=V:

Type in the command:

Exit

Type in the command:

V:

After you have assigned a drive letter Using Diskpart You can format the EFI partition:

Example: if you assigned a letter V to the partition the command would be:

format V: /FS:FAT32

After the format you need to recreate the EFI directory structure with the command:

MD \EFI\Microsoft\Boot

Then change to the Boot directory with:

cd /d V:\EFI\Microsoft\Boot\

Then run:

bootrec /FixBoot

Finally run:

bcdboot c:\Windows /l en-us /s V: /f All

Type in the command:

bcdboot C:\windows /s V: /f UEFI (This replaces the above crossed out lines and works in Win 10 1709)

 

Windows 10 Won't Boot, No Safe Mode, sfc chkdsk and bootrec do not seem to fix issue, DISM doesnt work.

really you had horrible experience ,, sorry for the trouble caused to you ,

I think your windows 10 iso itself is corrupted , because you installed in two computers , all gives same result means , download fresh windows 10

disable secure boot , enable csm mode , save and exit

try below methods

method 1

boot the computer with windows 10 dvd

go to command prompt

type diskpart

select disk 0

list vol

find EFI partition no, Windows 10 partition no

i assume efi is 2

i assume os is C

select vol 2

assign letter=V

exit

X:\windows\system32\

type below commands

bootrec /fixmbr

bootrec /fixboot

bootrec /scanos

bootrec /rebuildbcd , if it found windows location type Y

bootsect /nt60 sys /force

or

bootsect /nt60 C: /force

or

bootsect /nt60 all /force

or

bcdboot C:\windows /l en-us

or

bcdboot c:\windows /s V:

or

bcdboot c:\windows /s V: /f UEFI

method 2

go to command prompt

type diskpart

select disk 0

create partition EFI size=260

format quick fs=fat32 label="EFI"

create partition msr size=128

list vol

find EFI partition no, Windows 10 partition no

i assume efi is 2

i assume OS is

select vol 2

assign letter=V

exit

X:\windows\system32\

type below commands

bootrec /fixmbr

bootrec /fixboot

bootrec /scanos

bootrec /rebuildbcd , if it found windows location type Y

bootsect /nt60 sys /force

or

bootsect /nt60 C: /force

or

bootsect /nt60 all /force

or

bcdboot C:\windows /l en-us

or

bcdboot c:\windows /s V:

or

bcdboot c:\windows /s V: /f UEFI

exit

method 3

go to command prompt

type diskpart

select disk 0

list vol

find EFI partition no, Windows 10 partition no

i assume efi is 2

i assume os is C

select vol 2

assign letter=V

exit

cd /d V:\EFI\Microsoft\Boot\

bootrec /FixBoot

exit