The macOS gets a notification about the external hard drive. What happens when you plug the WD My Passport into the Mac computer? Let’s first talk about how Mac recognizes any external drive to develop a basic understanding of the process. The portable HDD file system of WD Passport is corrupted.Virus or Trojan may have infected WD my Passport.Your macOS doesn’t recognize WD My Passport due to the following main reasons: We can’t solve a problem without knowing its actual cause. It’s always better to perform a root cause analysis before implementing the fixes. Reasons Why WD My Passport Is not Showing? Use WD Drive Utilities to Fix WD My Passport Drive Not Showing.Use Disk Utility on Mac to Repair WD My Passport Not Showing Up.Use WD Discovery to Display External Hard Drive on Mac.External Drive Is Not Showing Because of Incompatible File System.Is There a Password Lock on WD My Passport Drive?.Mac Unable to Recognize WD Passport but the Drive’s Lights Are On.Reformat WD Passport in Disk Utility Using First Aid.Some Quick Fixes if External Drive is Not Showing.Plug WD Passport in another Mac or Windows Laptop.How to Troubleshoot WD Passport Not Showing?.How Does Mac Recognize the WD Passport?.