Get-License -Key "XXXXX" | Select-Object Total, Used You must first unassign from all hosts and vCenter itself. Using PowerCLI:

vim-cmd vimsvc/license --list vim-cmd vimsvc/license --remove <moref> This reverts the host to evaluation mode (60 days). C. The Deprecated Windows vCenter Tool: licensesvc If you are still on a Windows-based vCenter (6.x or earlier), you can use:

Example:

# Get the host's moref (e.g., ha-host, domain-c1234) vim-cmd vimsvc/auth/luid vim-cmd vimsvc/license --assign <license-key> <moref>