Uninstall from the Windows Start Menu
Execute the following steps to uninstall Regain PST to Office 365 Migrator software from the Windows Start menu:
- Click Start → All Programs → Regain Outlook to Office 365 Migration software → Uninstall Regain Outlook to Office 365 Migrationsoftware. A warning message appears before uninstalling the software.
- Click Yes to continue with the uninstalling process for Regain Outlook to Office 365 Migration software followed by “Regain Outlook to Office 365 Migration software was successfully removed from your computer” message.

- Click OK to complete the Regain Outlook to Office 365 Migration software uninstallation process.
Regain Outlook to Office 365 Migration software is successfully uninstalled from your computer system.