How can I backup my data, settings and portfolios?

To backup your data, settings, and watchlist go to Dashboard >> File >> Export/Backup

Click that, and on the Export window that comes up, select all the data that you want to copy. Note that there are several security options for your export file. Select where the file should be located and hit the Export button - the file will be created.

If you want to load your data on the same computer or on another, use the Import/Restore option in the File menu to import the previously exported settings and data.