Close all ESI applications, including ESI and the ESI PowerShell toolkits. If you do not close all applicable ESI applications, you may receive a warning message to close them during the process.
Navigate to and open the Windows Control Panel.
Click Uninstall a program.
Select the EMC Storage Integrator program and click Uninstall.
If you are upgrading from version 1.2, continue this process until you have removed all EMC Storage Integrator adapters or programs from the list.
ESI is uninstalled. See Installing ESI to install a new complete installation of ESI.