Before you can upgrade your ESXi hosts with the latest patches and upgrade the VMware Tools in your virtual machines, you have to download the patches from the enabled patch download sources to the local patch repository on your vSphere Update Manager server.
After installation of vSphere Update Manager, the download sources of VMware are already configured. Other vendors that have download sources are DELL and Hewlett-Packard Enterprise. The download sources of the companies are:
Unfortunately, you cannot use PowerCLI to add download sources to vSphere Update Manager. You have to use the vSphere Web Client to do this. Go to Home | Update Manager | Select your vSphere Update Manager in the left pane | Manage | Settings | Download Settings | Edit... to edit the download sources.
In the following screenshot of the vSphere...