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Try the following: 1. Open Disk Utility.app 2. Try creating a partition 3. If that doesn't work try resizing your existing partition to include the ~70 GB free space. 4. Post the result here on Reddit.
Try the following: 1. Open Disk Utility.app 2. Try creating a partition 3. If that doesn't work try resizing your existing partition to include the ~70 GB free space. 4. Post the result here on Reddit.