![]() This is also because the Apple certificates had expired. But here, it wont run the installer, but come up with an error like This copy of the Install OS X El Capitan application cant be verified. ![]() Then I copy the installer app over to the old Macbook Pro. Once downloaded, I copy it from the Applications folder out to a USB disk. In App Store I go to Purchased, scroll down the list and download the El Capitan installer. So I download the El Capitan Installer by using another Mac with a newer OS installed. But as some Apple certificates had expired, Safari refuses to connect. The problem was that 10.6.8 has no App Store software and one would need to download El Capitan from a itunes website link. The latest working OS for this machine is OS X 10.11 El Capitan. It is a Macbook Pro, Mid 2009 15 with OS X 10.6.8 on it. But he could use Email and some local apps, so he postponed to fix it.Īnd now he wanted me to take care of it. So when on February 14th 2016 some Apple certificates expired, he no longer could surf the Internet. Turns out he never installed any updates. His browser no longer connected to websites and everything was “slow”. Recently a client asked me whether I could help him to make his Macbook Pro “work again”.
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