Kernel Mode Debugging Issues

By default, local and remote kernel mode debugging is only possible on Windows Vista when the system is booted with debugging explicitly enabled. You can enable kernel mode debugging with the following command from an elevated command prompt:

 bcdedit -debug on

You can disable kernel mode debugging by issuing the following:

 bcdedit -debug off

or

 bcdedit -deletevalue debug

The change does not take effect until the next system reboot.