Rename-Computer -ComputerName "DPC-XXX" -NewName "DPC-JKenney" -DomainCredential DPC\yourDAaccount -force
Example - Rename-Computer -ComputerName "DPC-AKKKKTFYEIE" -NewName "DPC-LPendSurf" -DomainCredential DPC\luke.pendegrass_da -force
BE MINDFUL if you change someone's computer name and they lock the computer before they restart they will be unable to log in until they do. It will give them a "Domain" error.