Time machine won't overwrite on an external hard drive

My seagate 500gb external drive won't allow back ups due to capacity when it gets to 150gb of space left. Any ideas as at the moment I just erase the drive and start again each month. Not ideal. Many thanks

MacBook Pro, iOS 7.0.4

Posted on Jan 3, 2014 2:12 AM

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Time machine won't overwrite on an external hard drive

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