What is the importance of disabling the Config.sys and Autoexec.bat screens
in msconfig.exe? Some computers will not start without Config.sys.

Also, when creating a "clean environment" in Diagnostic selection for
analysis the Config.sys and Autoexec.bat are enabled and the System.ini and
Win.ini are disabled. Using step-by-step confirmation technique and not
enabling the Config.sys and Autoexec.bat as part of the analysis.

I recently performed this procedure when referring to kb891711 and the
mouse behavior. tia