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imac sdd not show start up disk

  1. Saintadi

    SSD doesn't show in startup disk

    Hi I have an iMac 2017 1TB HDD which I bought 500 GB Samsung T5 external SSD and cloned it. it is much faster now however, the issue is I am not seeing an external drive in the default start up disk option in system preferences. So every time I boot the computer I have to press Option to select...