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# vCenter/ESXi deregistration

Unisphere supports the discovery of vCenters or ESXi servers (using a read-only user) and integrates the information into Unisphere. VMware information is connected to its storage extents, and enables seamless investigation of any storage-related issues.

## About this task

See Roles and associated permissions for information on user roles and permissions.

| NOTE: Admin or Security Admin user roles are required to perform this task.

To unregister an existing vCenter/ESXi Server instance:

## Steps

1. Select VMware > vCenters and ESXi from the menu bar on the left side of the screen.
   The registered virtualization server cards are displayed.
2. Select a virtualization server card, click , and click Unregister.

   A warning is displayed indicating that this operation removes the ESXi or all ESXi servers under the selected vCenter.

   The certificate file is removed from the truststore.

3. Click OK.