By using open source software plugin, you can add FolderSize information folder size in Windows Explorer. This tool integrates into Explorer, check the folders in the background, and displays the results in a special column.
In the first time using this software, will be available an additional column in Windows Explorer, but not yet visible. Open a folder in Details View mode. Right-click on the column on the right folder and select the option 'Folder Size'.
Now you can change the size of the old column with a new version. Right-click again on the column headers and disable the the old 'size'. With the drage-drop new column to the desired position. If necessary adjust the column width. When the tool is still busy with the analysis of the size of the folder, there was a temporary value with the sign '+' in the back.
To activate this function, to be active in all folders, select "Tools l Folder Options' and open the tab 'View'. In the 'Folder View' click the 'Apply to All Folders'. As such, all configuration' View 'options already identified .