Compatibility

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1

macOS not compatible with wd 3.4.89

2

WD Discovery 3.4.89 was released on 8/21/2019.
You should download WD Discovery 4.3.327 released on 3/31/2021

List of WD Discovery version:
https://support-en.wd.com/app/products/downloads/release-notes/note_id/29475

Download the last version (scroll down for the macOS section) :