Booting Windows VHD with custom boot flags

[DavidSpivey]

I've used PowerISO for several years and it has the ability to edit img files.

http://www.poweriso.com

Might try that?  I think you get a 30 day trial.

Nope. Didn't work. The BCD file shows in ventoy_vhdboot.img as both BCD and bcd. PowerISO doesn't know how to handle this and will only replace one of the files -- whichever is first in its listing. I did replace the file, and now I can't boot the VHD because the system can't find the BCD. Fortunately I have a backup of the original ventoy_vhdboot.img.