Licensing ESXi 5.x and vCenter Server 5.x (2014295) - VMware
kb.vmware.com › s › articleMar 09, 2021 · Log in to the ESXi host using vSphere Client. Click the Configuration tab. Click Licensed Features under Software. Click Edit under Licensed Features. Select Assign a new license key to this host. Press Enter and enter the License Key. Click OK. Licensing vCenter Server To license vCenter Server 5.x: Log in to the vSphere Client. Click Home.