让Windows加入域的PowerShell

$domain = "midrange.lab"
$password = "MyPassword!" | ConvertTo-SecureString -asPlainText -Force
$username = "$domain\administrator"
$credential = New-Object System.Management.Automation.PSCredential($username,$password)
Add-Computer -DomainName $domain -Credential $credential

 

来源

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Join Computer to Domain With Powershell (One-Click Method)

http://community.spiceworks.com/scripts/show/1540-join-computer-to-domain-with-powershell-one-click-method