Description
WD Discovery does not display capacity, free space available, or open the drive on a Windows computer.
The drive may not be formatted with a supported Windows file system or may require formatting.
Resolution
backup the data to another device. Once the data has been backed up, format the drive in exFAT to be used on both Windows and macOS. If the drive will only be used on a Windows computer, please format the drive in NTFS.
Please see the following articles for more information:
Answer ID 50396: How to Install and Use WD Drive Utilities SoftwareAnswer ID 20821: Steps to Format a Drive for Use on Windows and macOS Using exFat
Answer ID 8200: Steps to Format a Drive for Use with Windows or macOS