Our intranet has a Document Management system whereby a user can search for a file and then click a link (file:///) to open the containing folder with Windows Explorer.
Since moving to IE10, we have noticed that it doesn't work on some machines. (User clicks the link, but nothing happens.) I have tracked it down to whether a user has allowed / denied Windows Explorer access with the following pop-up:
I am assuming the ones that don't work are failing because the user has clicked "Don't Allow" and checked the "Do not show me the warning" check box.
How can I change this setting in IE10 if the popup is not being shown?