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Q: time machine

Hi, I am trying to upgrade my iMac to Yosemite.  I have a WD MyBook which I've designated as my backup HD on Time Machine.  Whenever I try to install Yosemite, I get a box declaring both my iMac's HD and the WD external HD are acting as Time Machine backups.  Can anyone advise how to remove my internal HD from Time Machine?  Many thanks-Tom

iMac

Posted on Jun 9, 2015 11:29 AM

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Q: time machine

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