When I click on a folder in the right window pane of windows explorer it opens the folder in a new windows explorer window. I have set the folder option to "open each folder in the same window". In folder options/file types/advanced all the buttons are grey except the "new" button so that I can't edit or delete actions and even if I could I wouldn't know what to enter for "open" to get a folder that is clicked on in the right pane to open in the right pane.

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