title: (Get-wmiobject win32_computersystem).username returns invalid value
body: <p>In windows 8.1 English OS/64-bit PC logged on with Microsoft Account
  When i execute the above command the User name format will be as follows
  //</p>
  
  <p>In windows 8.1 Japanese OS/64-bit PC logged on with Microsoft Account
  When i execute the above command the User name format will be as follows
  /</p>
  
  <p>Note: 
  System Name: lenovo-PC
  DomainName: LENOVO-PC
  UserName: TestAccount </p>
  
  <p>Why it is returning different format in the different environment PC?</p>
  
  <p>My logic is failing to get the token for the current logged in User.</p>
  
  <p>Please help anyone.</p>