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pop-up message on my iMac

Posted: Wed Feb 22, 2017 3:48 pm
by anne murray
After I installed El Capitan on my 2011 iMac I began getting this message. It recurs frequently.I don't know what to do about it, and I don't know what problem it might cause. Thank you.

Re: pop-up message on my iMac

Posted: Wed Feb 22, 2017 8:15 pm
by rickj
Do you have Super Duper installed? If so, maybe this will help.