Clean up SharePoint User Profile Store using PowerShell

Today i had a problem in my development environment for my SharePoint Projects regarding User Profile Store. My user profile was a messed up and was not available for editing in central administration. When i searched for my profile it still there but not shown for administration.  This was a really strange behavior because a couple of days it worked well. I added various new profile properties to my user profile service application. So the recreation of User Profile Service 
Application was not an option. Deletion of orphan or corrupted user profiles is not possible using Central Administration or even using avaliable PowerShell commands.

But there is a solution using PowerShell without compiled code. Using PowerShell everything what is avaliable in the server object model is avaliable. First of all two assemblies must be referenced.
These assemblies are:

These assemblies are:

• Microsoft.Office.Server (Core SharePoint Server Assembly)

• Microsoft.Office.Server.UserProfiles (UserProfile Assembly)

Script:

/* Load required Assemblies for SharePoint Server and User Profile */
[System.Reflection.Assembly]::LoadWithPartialName(“Microsoft.Office.Server”)
[System.Reflection.Assembly]::LoadWithPartialName(“Microsoft.Office.Server.UserProfiles”)
/* Central Adminstration URL or any Web Application*/
$url = "http://myserver:Port"
/* Create a new Context Object */
$contextWeb = New-Object Microsoft.SharePoint.SPSite("http://servername");
/* Get the right Service Context */
$ServerContext = [Microsoft.Office.Server.ServerContext]::GetContext($contextWeb);
/* create a new connection to the UserProfileManager */
$UserProfileManager = New-Object Microsoft.Office.Server.UserProfiles.UserProfileManager($ServerContext);
/* Ger all User Profiles */
$Profiles = $UserProfileManager.GetEnumerator();
/* Loop through user profile */
foreach ($oUser in $Profiles ) {
/* Remove Profile */
$UserProfileManager.RemoveUserProfile($oUser.item("AccountName"));
}

This script can be extended to delete only specific users from user profile information. At the end I was able to solve my problem. My User Profile was deleted and recreated on first access and due profile import. Everything worked fine.

In the old days you had to write some custom command line tool to address those batch update and deletion task. With the introduction of PowerShell to SharePoint any possible administrative task could be accomplished by just use scripting.

Those assemblies could be referenced using System.Reflection and the rest of the script is quite simple SharePoint Development. So get a context object, open profile service application get all use and delete them.