We have multiple GPO’s in place to manage lab and classroom machines. We restrict the folder options section under “tools” within the file explorer on XP. What has happened however is that users can view the details of the file but the file extension itself is missing. There is an option under “Tools” -> “”Options” -> “View” “Hide extensions of known file types” which allows file extensions to be viewed. My question is where in a GPO can you select this option so if a user wishes to view the file details under “View” -> “Details” that it would show the file extension?