1) Please see the title !
2) I have tried to repair my RVT 2015 but no way !
3) Is there something to do ?
Before UnInstalling RVT 2015 , ReBoot , Re-Installing !
It's probably broken in your registry, which a repair won't fix. Best thing you can do is backup and delete this key, then relaunch Revit:
HKEY_CURRENT_USER\Software\Autodesk\Revit\Autodesk Revit 2015
That should rebuild the keys for your user.
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