Plug-and-play with a catch. Seagate makes reliable, fast, and affordable drives, but they are formatted for Windows out of the box. For Mac users, the setup is simple—but you absolutely must reformat the drive for the best experience.

Open Finder . You should see the drive appear on the left sidebar under "Locations." Click it. If you can drag a file onto it and it fails, you’re in read-only mode.

Click Erase to complete the process. Note: This will delete all existing data on the drive . 3. Installing Optional Seagate Software

Click the Erase button at the top of the window. Choose Your Format: APFS: Best for recent Macs (macOS 10.13+) and SSDs.

Here’s the correct process to get your Seagate drive working perfectly on macOS.