Cannot expand folders on USB drive

Tom…I see you’ve been here since jun23…and nothing…so any success in opening the folders. I’ve recently been poking around this Passport Drive, trying to Explorer view the files and folders and even the total free space… I’ve made some comments in other postings… How to delete old backups to free up space on WD Passport

This one had to do about freeing up space…
I looked again at my Passport 1T backup. the main one that contains that single scheduled backup folder is “WD Backup.swstor” This finally expands to a History and a Volume(,…) folders. History has all the backup old copies based on date modification. Files have appended names and _LAST added as pointer. The Volume() contain that latest copy in true name and size.

So, are you still saying the you cannot Expand the folders by double clicking the folder? Curious. On another note, do you back up everything under you name, or just selected Necessary folders. I found my drive space slowly getting chewed up… I see you have a 4TB monster.