BCD

You can change your BCD configuration (parameters used by bootmgr, boot applications, and winload) by BCDedit in command line or editing the registry (if not changeable by BCDedit)

1 Show all entries in a BCD store

bcdedit -enum all

2 Enable debug

bcdedit -bootdebug {bootmgr} on  //enable debugging of Windows Boot Manager
bcdedit -bootdebug on            //enable debugging of boot loader
Bcdedit -debug on                //enable debugging of operating system

3 Enable bootlog (cause windows to write a log of the boot to %SystemRoot%\Ntbtlog.txt In your VM, edit registry (HKLV\System\CurrentControlSet\Control\) Change value of "SystemStartOptions" 4 Turn off driver verification

bcdedit -set loadoptions DDISABLE_INTEGRITY_CHECKS
bcdedit -set TESTSIGNING ON

configure for other BCD files

(1) check the for "Windows Boot Loader"

bcdedit /store c:\winpe_amd64\ISO\boot\BCD -enum all

(2) turn the debug option on (see output in WinDbg), is sth like {7619dcc8-fafe-11d9-b411-000476eba25f} in your "Windows Boot Loader" session

bcdedit /store c:\winpe_amd64\ISO\boot\BCD -set  debug on

(3) turn the bootdebug option on (break in WinDbg during boot), is sth like {7619dcc8-fafe-11d9-b411-000476eba25f} in your "Windows Boot Loader" session

bcdedit /store c:\winpe_amd64\ISO\boot\BCD -set  bootdebug on

Boot Options in Windows Vista and Later： http://msdn.microsoft.com/en-us/library/windows/hardware/ff542273(v=vs.85).aspx BCD Boot Options Reference： http://msdn.microsoft.com/en-us/library/windows/hardware/ff542205(v=vs.85).aspx