The problem is most likely that you’ve enabled Windows Classic folders, which disables those two panes.

The bottom pane is the details pane, and the one on the right is the preview pane.

activate the Preview and Details PaneClick on Organize, and then “Folder and Search Options”.

Why Can’t I Turn the Details/Preview Panes On or Off in Windows Vista Explorer?

On the general tab, select “Show preview and filters” in the Tasks section at the top.

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