In a DOS command window, type:
copy con MoveBak.bat [enter]
C:
cd \Acad [enter]
xcopy *.bak C:\BakDir /s [enter]
del *.bak /s [enter]
exit [enter]
ctrl-z
Note: the ctrl-z is not spelled out.
You should now be at the DOS prompt again.
You have created a batch file!!
It is called MoveBak.bat.
Put a shortcut to the batch file on your desktop.
Double click the shortcut to copy all bak files to a folder called C:\BakDir and then delete all bak files. Note that the directory structure will be duplicated - each bak file will be in an identically named folder from whence it came.
We almost always open an AutoCAD drawing through the AutoCAD\Open Drawing command. We rarely open an AutoCAD drawing from Windows Explorer, so our .bak files show up only in Windows Explorer. Then, while in Windows Explorer, we can delete the .bak files either through a "*.bak" search option, "arrange icons by type" option, or others as suggested here. We do sometimes want our .bak drawing. If we need a drawing that's older than yesterday's .bak file, then we rely on the system back-ups generated every night. It takes less time to refer to a .bak drawing from yesterday's work than to ask the IT guy to retrieve a backed-up drawing from the system back-up resources.