Hides the Preview Pane in File Explorer. If you enable this policy setting, the Preview Pane in File Explorer is hidden and cannot be turned on by the user. If you disable, or do not configure this setting, the Preview Pane is hidden by default and can be displayed by the user. Fix: (1) GPO: User Configuration\Administrative Templates\Windows Components\File Explorer\Explorer Frame Pane!Turn off Preview Pane (2) REG: HKEY_USERS\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer!NoReadingPane