You can install SnapManager for Exchange on a stand-alone Windows host system or a Windows cluster using either the interactive or the unattended modes of installation. SnapManager also enables you to upgrade an older version and reinstall SnapManager on your configuration.
Unless it is specified for a particular upgrade path or for a particular troubleshooting situation, you do not need to uninstall SnapManager before reinstalling it or upgrading to a newer version.
Note: If you plan to reinstall SnapManager later, ensure that you record the drive letter and path of your current SnapInfo directories. After you reinstall SnapManager, ensure that you reconfigure SnapManager to use those same SnapInfo directory locations. The reconfiguration preserves SnapManager’s records of backups created before you uninstalled and reinstalled SnapManager.