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Booting Windows VHD with custom boot flags
Newest version of PowerISO. Fresh ventoy_vhdboot.img. Followed your instructions to the letter. As I said before, The BCD file shows in ventoy_vhdboot.img as both BCD and bcd (notice the upper and lowercase files). PowerISO can't replace BCD. It can only replace bcd (lower case). The BCD (upper case) file in the img never gets touched when replacing the files. If I delete both of the BCD files before replacing them with the one I modified (BCD) then I get this error.

(08-30-2021, 10:04 PM)asheroto Wrote: Here you go.  You need to specify {boomgr} and {default} in the bcdedit commands when specifying the store:

bcdedit /store BCD /set {default} testsigning on
bcdedit /store BCD /set {bootmgr} testsigning on
bcdedit /store BCD

Afterwards, I was able to to use PowerISO to replace the BCD files.

If PowerISO won't recognize the file, download it again as it may have become corrupt.

[Image: I2ePFH0.png]
You say you have this working. Did you boot it? If it boots, send me a copy of your modified venoy_vhdboot img.

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RE: Booting Windows VHD with custom boot flags - by DavidSpivey - 09-14-2021, 03:31 AM

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