In this video you can watch HOW TO troubleshoot BCD errors
Used command lines:
bootrec.exe /rebuildbcd
bootrec.exe /fixmbr
bootrec.exe /fixboot
First method:
Type this command to fix “the access is denied”:
bootsect/nt60
Execute this command to fix windows boot issue:
bootrec /fixboot
attrib C:\boot\bcd -h -r -s
Second method:
Especially for UEFI-based computers:
boot windows from installation media such as DVD or USB:
Select: Repair your computer = troubleshoot = Command Prompt:
Open desk manager:
Diskpart
Show available disks:
List disk.
Select boot drive:
Sel disk 0
Show available partitions:
List vol
Select the EFI Partition:
Sel vol 4
Assign the V letter to The EFI partition:
assign letter=V:
Open v partition:
Exit
V:
Format the EFI partition:
format V: /FS:FAT32
For windows 10 1709 and older use below command:
MD \EFI\Microsoft\Boot
cd /d V:\EFI\Microsoft\Boot\
bootrec /FixBoot
bcdboot c:\Windows /l en-us /s V: /f All
For windows 10 1709 or newer (1803, 1809, 1903, 1909, 2004), …etc. use below command:
bcdboot C:\windows /s V: /f UEFI
exit
##############################
# Incase if you are getting the below error#
##############################
"Failure when attempting to copy boot files"
Continue from the final step(error):
bcdboot c:\windows /l en-us /s (assign some letter): /f BIOS or UEFI or EFI or All
bcdboot c:\windows /s (assigned letter): /f BIOS or UEFI or EFI or All
Exit the command and restart the command from the beginning
X:\Sources attrib c:\boot\bcd -h -r -s
X:\Sources ren c:\boot\bcd bcd.old
X:\Sources bootrec /rebuildbcd
.
.
.
Add installation to boot list? Yes(Y)/No(N)/All(A):A
" The Operation completed successfully."
X:\Sources __Exit
Now restart the PC without OS CD or pendrive.
Thanks for watching. Hope your issue fixed.
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23 дек 2020
