Updating mac operating system
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You should also have your Apple ID and password handy.
There are so many reasons to upgrade to mac OS Sierra now.
You get access to new features that make your Mac even more useful and fun.
Are you curious how easy it is for someone to gain access to your computer?
If so, read on to see the technique one might use to figure out your computer password. Simply download the Ophcrack ISO and burn it to a CD (or load it onto a USB drive via UNetbootin).
Then, if your Mac is running OS X Lion 10.7.5 or later, you can upgrade directly to mac OS Sierra. Click the download button and follow the onscreen instructions to begin your upgrade.