Have you tried rename original media folder e.g to "Media folder" (media_folder in url) then update configuration in upload.ini and content.ini?
upload.ini
# Which root node to fetch locations from
# Either use a node ID or a node path (e.g. media )
# - content - The content structure
# - users - The user tree
# - media - Media tree for images, files and media
RootNode=43