CTRL+\ (Debug Current Debugger)

The CTRL+\ key launches a new instance of CDB; this new debugger takes the current debugger as its target.

CTRL+\  ENTER 

Environment

Debuggers	CDB, NTSD, KD
Modes	user mode, kernel mode
Targets	live, crash dump
Platforms	all

Remarks

This is equivalent to launching a new CDB through the remote.exe utility, and using it to debug the debugger that you are already running.

CTRL+\ is similar to the .dbgdbg (Debug Current Debugger) command.