If you already have FolderSizes 9 installed, you can update your license key directly through the user interface: Navigate to the Help tab on the ribbon bar. Click the License Code Manager button.
: Minor version updates (e.g., from v9.3 to v9.7) are free for all existing v9 license holders. Major version upgrades (e.g., moving from v8 to v9) typically require a fee, but existing users can get a significant discount by entering their old key on the Upgrade Page. Version 9 Compatibility & Features foldersizes 9 license key upd