Western Digital - WD My Book 12TB Desktop External Hard Drive for Windows/Mac/Laptop, USB 3.0 (WDBBGB0120HBK-NESN) - Black

Hello, No, the drive does not require internet registration to function. You can use it by simply connecting it your computer. Internet access is only needed for optional software downloads. If you are facing any issue, please open a support ticket at https://support-en.wd.com/app/ask/session, the customer support team will contact you as soon as possible.

Hello Walt, Please note that WD My Book Desktop External drive comes preformatted in NTFS format for Windows OS. To use the drive for MacOS you can reformat the drive with macOS supported APFS file system using this link: https://support-en.wd.com/app/answers/detailweb/a_id/8200/ Please note that reformatting is a data destructive process, please backup data from the drive before reformatting it. For Time Machine backup and restore from MacOS to WD External Drive please refer to the link: https://support-in.wd.com/app/answers/detailweb/a_id/18952/ If you are facing any issue, please open a support ticket at https://support-en.wd.com/app/ask/session, the customer support team will contact you as soon as possible.