That was the problem, thank you
In seems that also in Windows 7 the Recycle Bin also has to have this warning set in motion, in order for Mp3tag to display it [as uninstalling and installing Mp3tag with default settings did not help]
So now I wish there was also a message available for moving files, because the move and copy options are right next to each other: /t/19160/1
But I still would like to see the delete and remove options somehow moved apart