We've received a massive feedback on our tips dealing with user profile management, so we decided to add a couple of additional tips.

WMI can easily enumerate all user profiles on a system but lists only the SID (security identifier), not the plain text user name.

Get-CimInstance -ClassName Win32_UserProfile |

To improve this, here is a simple chunk of code that converts SIDs to user names:

$sid = "S-1-5-32-544"
(New-Object System.Security.Principal.SecurityIdentifier($sid)).Translate([System.Security.Principal.NTAccount]).Value

To add a clear text user name to the output of Get-CimInstance, you can use Add-Member and add a ScriptProperty:

Get-CimInstance -ClassName Win32_UserProfile |
    Add-Member -MemberType ScriptProperty -Name UserName -Value { (New-Object System.Security.Principal.SecurityIdentifier($this.Sid)).Translate([System.Security.Principal.NTAccount]).Value } -PassThru |

The grid view now shows an additional column called “UserName” with the clear text user name for a given profile.

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