I have taken ownership of my external HDD and now I should be able to access every folder but I can't. There are numerous folders for which I don't have the ownership of. I tried taking ownership of those but after I close/reopen an explorer windows the ownership resets itself to what it was before.
For example I have a folder which now has this
S-1-5-21-95661877-3860777391-1413521220-1000 and a subfolder of this which has
Unable to display current owner.
If I take the ownership of the subfolder it shows me as the owner but I still can't access it; I get "You don't currently have permission ...".