Turn Off Requests To Use New Disks for Time Machine [OS X Tips]

Turn Off Requests To Use New Disks for Time Machine [OS X Tips]

If you don’t use Time Machine, you might notice that every time you attach a new and/or blank hard disk to the computer you get asked if you want to use it for backups. Here’s a simple trick that will stop that happening.

Here’s another tip from Mac Kung Fu, which contains over 300 tips, tricks, hints and hacks for OS X. It’s Amazon ($2.47) as well as other bookstores, and also as an eBook for all eReaders.

You can stop this request dialog box from appearing by opening a Terminal window (Finder -> Applications -> Utilities – > Terminal) and typing the following:

defaults write com.apple.TimeMachine DoNotOfferNewDisksForBackup -bool TRUE

Then log out and back in again for the changes to take effect.

If you’d like to restore the request dialog at a later date, again open Terminal then type the following (log out and back in again after for the changes to take effect):

defaults delete com.apple.TimeMachine DoNotOfferNewDisksForBackup

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About the author

Keir ThomasKeir Thomas (http://keirthomas.com) is the author of Mac Kung Fu, which contains over 300 tips, tricks, hints and hacks for Mac OS X Lion. He's also the author of over 10 other computing titles.

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