Debugger can't get KD version information, Win32 error 0n5

Debugger can't get KD version information, Win32 error 0n5

local kernel debugging is a really useful feature, however Vista and Windows Server 2008

default disable this funtionality. you can do followings to enable it.

1)

 bcdedit /debug on

 

2) reboot.

3) enter windbg/kd directory, run:

    kdbgctrl -db

    kdbgctrl -e

4) kd -kl

 

Done.

 

if you don't run kdbgctrl -db/-e, you will get error message like

"Debugger can't get KD version information, Win32 error 0n5".

 

i don't find any access/priviledge audit error tracked in security log and

process monitor also found nothing, it's simply a return value from kldbgdrv.sys.