You can unregister a vCenter Server system from the vSphere Web Client if you no longer want users to use that vSphere Web Client instance to connect to the vCenter Server system.

Log-in to the system on which the vSphere Web Client is installed. You cannot unregister a vCenter Server system from a remote system.

Ensure that you have login credentials with Administrator privileges for the vCenter Server system that you are registering.


Open a Web browser and enter the URL for the administration tool: https://localhost:9443/admin-app or

Use the localhost or loopback address to access the administration tool instead of using the server IP address.


Select the vCenter Server system to unregister.


Click Unregister vCenter Server.


Type the username and password and click Unregister.