MCPBlog

If you run into problem during running of Sharepoint 2010 Configuration wizard that reports 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)

Simply do the following:

• Uninstall Sharepoint 2010 and anything you installed regarding Sharepoint after (Sharepoint will remove SQL 2008 Express, not full SQL).
  • In case you used full SQL check for any additional bases
• Run the install again, but STOP at the Configuration Wizard step!!!
• On Windows Server 2008 right click Notepad and run it as Administrator,
• Navigate notepad to "C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\14\WebClients\Profile\",
• Choose All files as file type,
• Open file "client.config",
• Delete two instances of "allowInsecureTransport" tag (mind the spaces and containing tag).
• Proceed with Configuration Wizard.

I'm not sure what thing does but Wizard manages to complete successfully :)