Disk Doctors Outlook Mail Recovery (.pst) Software Installation wizard is very simple and easy to follow. Please download the Disk Doctors Outlook Mail Recovery (.pst) Software installation file from our website into a folder from where you can access it later. You can launch the software installation by double clicking outlook-mail-recovery-pst.exe file and follow the on screen prompts for successful installation. The installation wizard will prompt you to complete the process step-by-step. One should have Administrator rights for the system where this software is being installed.