leaving the external drive plugged

Discussion in 'Mac Accessories' started by macswitcha2, Sep 16, 2009.

  1. macswitcha2 macrumors 65816

    Oct 18, 2008
    Is leaving it in ok as I erase my hard drive, and install snow leopard? How can I guarantee that my external hard drive won't be erased?
  2. DewGuy1999 macrumors 68040


    Jan 25, 2009
    I've always followed the advice to dismount and unplug any external drives before doing any kind of system updates.

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