Not backing up before updated to microsoft os sierra for mac

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Connect an external hard drive to your Mac and launch Time Machine. Here you have two options to backup Mac data before macOS 10.13/10.13.4 update: Time Machine or Mac backup software for help. Back up Mac computer data before macOS 10.13/10.13.4 update Here Part 1, we'll show you how to upgrade to macOS 10.13/10.13.4 High Sierra without losing any data on MacBook Pro/MacBook Air/iMac etc. Upgrade to macOS 10.13/10.13.4 High Sierra without losing data

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Follow the two next parts to free download macOS 10.13/10.13.4 to install and fix the macOS High Sierra update error right now. If you are trying to find a simple way to update Mac OS to the latest 10.13 or 10.13.4 High Sierra or you are looking for effective solutions to fix macOS High Sierra update stuck or failure error, you are at the right place.