I came across this issue, when I prepared a Windows 8 vhd and attached the vhd to the Windows 7 Enterprise System. After attaching the vhd, I run the bcdboot command to boot the Windows 8 from the vhd.
bcdboot.exe G:\Windows
This command given the error ” failure when attempting to copy boot files”.
Solution:
Run the command prompt under administrator previlage.
Start-> right click Command prompt-> Select “Run as Administrator”
Now run the bcdboot to add the new OS to the boot list.
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hey, looking forward to your other posts that are about to come.