We have a custom wallpaper on our banking workstation computers. We change the background periodically - Christmas, New Years, St Pat's, etc.
The changes are made in this location: Active Directory>Group Policy Object>Administrative Templates>Desktop>Active Desktop>Active Desktop Wallpaper. We change the path of the wallpaper to point to: \\UNC\Policies\xxx.bmp (where xxx is the name of the bmp).
This quit working recently. All user profiles get the StPat'sDay bmp when they hit CTL-ALT-DEL after their system goes into screen saver lock mode. We cannot change or get rid of the bmp file from displaying in the background. It seems like the file is locked or set in the users profiles (not roaming profiles). Would this be caused by a recent Microsoft security update? Any ideas why we cannot make this change anymore, in the location we've used in the past?