MacOS - Disable Time Machine notification

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Each time you connect an external drive, Time machine will ask you if you want to use the latter as a backup media>

To disable this notification:
  • Open a terminal and type the following command:
  • defaults write DoNotOfferNewDisksForBackup -bool YES

To enable it again:
  • defaults write DoNotOfferNewDisksForBackup -bool NO
Jean-François Pillou

Jean-François Pillou - Founder of CCM
Better known as Jeff, Jean-François Pillou is the founder of He is also CEO of CCM Benchmark and digital director at the Figaro Group.

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