Simply download the exe file of Outlook PST 2GB converter (PST Upgrade) to upgrade PST 2GB limit to 20GB Unicode Outlook in most exact manner. After select .pst files/folder (which you want to upgrade/degrade) with PST 2GB conversion tool, you can click on browse button (to select destination path) to start the conversion process for your PST files. After completion of the upgrading or degrading process you can check where your converted files/folders saved in MS Outlook. So what are you waiting for, go to pstupgrade.com website and order the fully operative version of this Outlook PST 2GB converter application. Before ordering the complete pro version, you must check the working procedure of this tool with its free trial edition.