In order to change the root password of an ESXi Host using PowerCLI, firstly you will need to connect to the host in question as the root user: Connect-VIServer esxi1.domain.local-User root-Password assdKIUU1235 Now by invoking the ‘Set-VMHostAccount’ cmdlet, we can change the root password as follows: Set-VMHostAccount –UserAccount root –Password 123GHYJ!rys