title: how to join computer to domain through powershell
body: <p>I have just done a fresh installation of windows 7 professional, and I would like to join my pc to domain through powershell but getting some error here is the code which I am using</p>
  
  <pre><code>Add-Computer -ComputerName HMD-PC002 -DomainName mydomain -Credential     
  mydomain\Administrator
  
  Add-Computer : Computer 'HMD-PC002' failed to join domain 'mydomain' from its current  
  workgroup 'WORKGROUP' with
  following error message: Unknown error (0xa8b).
  At C:\Users\HMDPC002\Desktop\add-pc_to_Domain.ps1:8 char:1
  + Add-Computer -ComputerName HMD-PC002 -DomainName mydomain -Credential mydomain\A ...
  + ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  + CategoryInfo          : OperationStopped: (HMD-PC002:String) [Add-Computer],   
  InvalidOperationException
  + FullyQualifiedErrorId :   
  FailToJoinDomainFromWorkgroup,Microsoft.PowerShell.Commands.AddComputerComma
  </code></pre>