No replies to this topic

[ulao]

I was trying to install windows 11 over 10 and kept getting lots of BCD errors. The best advice I had was to rebuild the BCD. 

 

I followed this till step  6] Rebuild the BCD and Boot Files

How to Rebuild the EFI Boot Partition, BCD and Boot Files » Winhelponline

 

and I get  "Failure when attempting to copy boot files,"

 

  My drive was c but now I can not even run BCDedit I get cannot find the file specified. If I reboot and let windows try to fix it says the drive is not unlocked. If I try to refersh the PC it says it fails. I also cannot boot.

 

I'm pretty sure I can get this fix but need some guidance. Also the reason the BCD is corrupt is that I ran a dynamic to GPT conversion  It did work, as the drive boot and runs find but clearly not done right for a windows upgrade. 

 

I'm sitting at a command prompt atm. 

c: main os

d: another partition I made on the disc

e: the dvd

 

disk part shows 4 volumes

 

0 dvd

1 my c drive

2 my d drive

3 efi

 

 

Since the EFI was formatted per that guide, how can I fix it? OR how can I rebuild the UEFI BCD

Edited by ulao, 17 October 2023 - 06:45 PM.

[ulao]

I was able to fix it using another window PE  with bcdboot C:\windows /s Y:

 

no idea why win8.1 cd didnt work. 

Edited by ulao, 17 October 2023 - 09:48 PM.

[Tokener]

I was able to fix it using another window PE  with bcdboot C:\windows /s Y:

 

no idea why win8.1 cd didnt work. 

hi ulao

there is propably an error when trying to run 8.1 bcdboot to modify Win11 BCD.

 

regards   T.