WD external drives that are sold as “macOS” drives, or are setup for a macOS file system, will not be recognized by any version of Windows OS.NTFS formatted drives have Operating System Compatibility with Windows OS. If the drive has been reformatted, it's possible to download the software which the drive originally shipped, please refer to Answer ID 10346: Download Software, Firmware and Drivers for WD Products.The following article provides details for the drive out of box & Operating System Compatibility, Answer ID 25242: How To Format an External Drive or Memory Card to Out of Box and OS Compatibility.Please refer to the below table for the best file system you should reformat your drive. If this is the case it's best to reformat the drive. If the drive is not immediately recognized (or appears to be read only), it is likely formatted for a different Operating System. Upon connecting to the computer, the external hard drive should be recognized and ready for use.

External hard drives may ship with Windows NTFS, macOS HFS+, or exFAT file systems.

Format a wd external hard drive for mac