Passport diagnostic report "Windows has found errors on this drive"
Worked perfectly last night. Has not been touched, moved, etc. since it was added. Now I see folders as they should be but each one claims to be empty when I try to open it. The drive is rated at 4TB and it currently has 3.1TB of data on it. I thought this was my most secure drive. I must find a way to save this data.
Update (01/18/2018)
I bought it through Amazon. It should be a legit device. It's only a couple of months old.