Impossible to translate a document alone....

Dear all,

I have a problem in translating a single document (without creating a project) in SDL Trados Studio 2017.

Let me explain :

1) I open SDL Trados Studio 2017

2) I drag and drop my .doc document on the welcome screen of SDL (onglet "Bienvenue" in French)

3)  A pop-up window (Translate the file) displays with 2 buttons: "Create a new project" and "Translate the document alone". I click on "Translate the document alone"

4) A new window appears. The source language is already defined. As soon as I select the target language as "French", the translation memory tab disapears...

5) I click on "OK", nothing happen....

Please help. I just bought this software and I can't even use it...

Thanks,

Pierre