How To Make Sure Time Machine Backs Up Your External Drive

Do you want to make sure that Time Machine backs up an external hard drive, USB flash drive or an SD card that is connected to your Mac? If so, here are instructions to make sure this happens.

  • Click on the Apple menu and select System Preferences
  • Click on Time Machine
  • Click on the Options button in the lower right corner
  • Look at the list of items under “Exclude these items from backups”
  • If your external hard drive, USB flash drive or SD card is listed, click on it to select it and then click the minus sign icon. This will remove it from the list of excluded items. Thus, Time Machine will backup this drive or card.
  • Click Save
  • Click the red dot to close the Time Machine Preferences window.

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