A:Answer Hello DocGeorge, Please be informed that the WD Elements External drive comes preformatted in NTFS format for Windows OS, In order to use the drive for macOS you can reformat the drive with macOS supported APFS file system by using this link: https://support-en.wd.com/app/answers/detailweb/a_id/8200/ Please be informed that reformatting is a data destructive process, please backup the data from the drive before reformatting it. For any assistance with the product, please feel free to or submit a support request at https://support-en.wd.com/app/askweb we will be happy to assist you.
