Options/Show folder sizes

Explorer++

Tools/Options.../Show folder sizes

System Default:   No

Checking this box forces Explorer++ to calculate and display folder sizes in the Files pane.  The feature might be useful if, for example, you were house-cleaning your drive and wanted to merge smaller folders with larger ones; folder sizes would be listed is the Size column, if enabled.

    Caution: Although it sounds obvious, when this option is enabled, Explorer++ calculates folder sizes - always.  If you are walking through your folder tree to get to a particular location, large folders in the files pane will be calculated, even if they are only momentarily displayed.  Windows is a multi-tasking, multi-threaded operating system; calculations continue even though the folder is no longer displayed.  This may greatly impact your system's performance - use this option with care.

 

Disable folder sizes on removable and network drives

When folder size calculation and display is enabled, you may check this box to turn off the feature for removable and network drives, as a time-saving convenience.  For network drives, this is a safety feature, as the system may not know ahead of time just how large the network drive is; time will be saved.  In addition, network and removable drives are transitory - it may not be useful to know the sizes since tomorrow, the drives may not be connected.