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Q: How to reverse my previous update made to my MAcBook Pro Yosemite OS X10.10.5

On July 16, 2016, I updated my adobe flash player. After that moment I had an ads appearing in my tool bar which named is Megabackup continually  popup on my screen all the time. I tried to delete it but without success. My question is  how to restore my system to the state it was before this updating? Thank you. 

Mac Pro, OS X Yosemite (10.10.5)

Posted on Jul 20, 2016 8:48 AM

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Q: How to reverse my previous update made to my MAcBook Pro Yosemite OS X10.10.5

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