@echo off
::Change the next line to the root of where you want to start deleting *.bak files
::Mine starts in c:\drawings
set BEGINPATH=c:\Drawings\
del /f/q/s %beginpath%\*.bak
set BEGINPATH=
Better yet, kill em all and let the backup file fairy sort em out
@echo off
del /f/q/s c:\*.bak