When you connect to a vCenter Server instance with no objects in the inventory, the Getting Started tabs in the vSphere Client provide a wizard to help you set up a basic inventory quickly. There are no objects in the inventory when you connect to vCenter Server for the first time after installation.

vSphere Client Getting Started Tab
vSphere Client with the Getting Started tab magnified for emphasis.

Setting up a basic inventory with the Getting Started tabs involves the following tasks:

Creating a datacenter

Adding the host to the datacenter

Creating a virtual machine

The Getting Started tabs wizard appears only if there are no objects in the inventory. After you have set up the basic inventory, the Getting Started tabs continue to provide information about the selected inventory object but no longer provide inventory setup wizard help.