Windows remote rename (AD) computers

# oldname, newname
$Computers = import-csv .\Rename.csv
$adminUser = Get-Credential
# "PREFIX- +" "+ $SerNum"
$Computers = Import-Csv ServerNames.csv -Header OldName, NewName
Foreach ( $Computer in $Computers )
{
Rename-Computer -ComputerName $Computer.OldName -NewName $Computer.NewName -DomainCredential $adminUser -Force -PassThru
}