I believe that the TFS version is very important here. Most of these tools are for RTF version TFS 12. I had version 11.0, and it just didn't work with the interface.
The easiest element is to run it directly. C: \ Program Files \ Microsoft Team Foundation Server 11.0 \ Tools \ TFSBackup.exe. As soon as I ran this program, it worked, however, I clearly would like to create a graph, which, I suspect, can be done using powershell. Another problem that I encountered was to back up this network, which I could not do because the SQL instance was running under the local computer administrator account.
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