WinDbg Tutorial on Code Project

Excellent start on The Code Project to a multi-part tutorial on debugging with WinDbg.

Windows Debuggers: Part 1: A Windbg Tutorial

In my professional career, I have seen most of us use Visual Studio for debugging but not many of the other debuggers that come for free. You may want such a debugger for many reasons, for example, on your home pc which you do not use for development but on which a certain program crashes from time to time.