Hello Susie, Please be informed that the WD My Passport External drive comes preformatted in NTFS format for Windows OS, However, in order to use the drive for macOS you can reformat the drive with macOS supported HFS+J file system by using this link: https://support-en.wd.com/app/answers/detailweb/a_id/8200/related/1 .Reformatting is a data destructive process, please backup the data from the drive before reformatting it. -Need Help? Please see our "'Contact Us" page for information.
1 week, 3 days ago
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Western Digital Team