If you tried installing SharePoint 2010 Beta 2 on Windows 7 (or Windows Server 2008 R2) shortly after its release; you may have ran into the following error:

Failed to create sample data.
An exception of type Microsoft.Office.Server.UserProfiles.UserProfileException was thrown.  Additional exception information: Unrecognized attribute ‘allowInsecureTransport’. Note that attribute names are case-sensitive. (C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\14\WebClients\Profile\client.config line 56)
Microsoft.Office.Server.UserProfiles.UserProfileException: Unrecognized attribute ‘allowInsecureTransport’.

This error is caused by a known issue with Token Authentication and WCF. A fix has been released and is now available  at http://go.microsoft.com/fwlink/?LinkID=166231.

If you didn’t uninstall after receiving the error, simply install the hotfix, and re-run the SharePoint 2010 Products Configuration Wizard.


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