xpnastalgia
Member
I have ASUS that came with UEFI win8 x64
disabled EUFI and installed dual boot win7 x64 (launch csm)
all worked fine BUT one day
I punched a bunch of F keys at start up to get to start from usb and somehow that messed up the bios/boot (didnt think that could even happen)
couldnt boot into either w8 or w7
then tried bcdedit fixs.. with no result
finally the only thing that got me to boot was
bcdboot C:\Windows /l en-gb /s B: /f ALL
which got me booting straight to w7, and i left it at that but now wanting to edit some start up settings i cant get bcdedit to work
C:\Users\Administrator>bcdedit
The boot configuration data store could not be opened.
The volume for a file has been externally altered so that the opened file is no
longer valid.
I've been reading stuff to recreate bcd but they all refer to "c:\boot\bcd" which i dont have in c but in my system partition A:\
DISKPART> list volume
im new to BCD and confused
there are 3 BCD files on system partition,
A:\Boot\BCD
A:\EFI\ASUS\BCD
A:\EFI\Microsoft\Boot\BCD
and one in
C:\EFI\Microsoft\Boot\BCD
where will i need to put my new one ? so i can have a proper dual boot back and get bcdedit to work..
do i need it in c:\boot\bcd as well?
I've tried EasyBCD's Under management options to
Reset BCD configuration
Re_Create/repair
just tried "Change boot drive" and it seems to have froze the app
disabled EUFI and installed dual boot win7 x64 (launch csm)
all worked fine BUT one day
I punched a bunch of F keys at start up to get to start from usb and somehow that messed up the bios/boot (didnt think that could even happen)
couldnt boot into either w8 or w7
then tried bcdedit fixs.. with no result
finally the only thing that got me to boot was
bcdboot C:\Windows /l en-gb /s B: /f ALL
which got me booting straight to w7, and i left it at that but now wanting to edit some start up settings i cant get bcdedit to work
C:\Users\Administrator>bcdedit
The boot configuration data store could not be opened.
The volume for a file has been externally altered so that the opened file is no
longer valid.
I've been reading stuff to recreate bcd but they all refer to "c:\boot\bcd" which i dont have in c but in my system partition A:\
DISKPART> list volume
Code:
Volume ### Ltr Label Fs Type Size Status Info
---------- --- ----------- ----- ---------- ------- --------- --------
Volume 0 A SYSTEM FAT32 Partition 300 MB Healthy System
Volume 1 D OS NTFS Partition 93 GB Healthy Pagefile
Volume 2 C NTFS Partition 351 GB Healthy Boot
Volume 3 F Restore NTFS Partition 20 GB Healthy
Volume 4 Recovery NTFS Partition 900 MB Healthy Hidden
im new to BCD and confused
there are 3 BCD files on system partition,
A:\Boot\BCD
A:\EFI\ASUS\BCD
A:\EFI\Microsoft\Boot\BCD
and one in
C:\EFI\Microsoft\Boot\BCD
where will i need to put my new one ? so i can have a proper dual boot back and get bcdedit to work..
do i need it in c:\boot\bcd as well?
I've tried EasyBCD's Under management options to
Reset BCD configuration
Re_Create/repair
just tried "Change boot drive" and it seems to have froze the app
Last edited: