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crwdns2944351:0crwdnd2944351:0How to Install macOS High Sierracrwdnd2944351:0crwdne2944351:0

crwdns2933797:0Arthur Shicrwdnd2933797:0crwdne2933797:0

crwdns2936043:0crwdne2936043:0 crwdns2933505:0crwdne2933505:0 Arthur Shi

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Introduction
If you have recently upgraded or replaced the hard drive for your MacBook or iMac, you will need to reinstall macOS onto it. This guide will show you how to install macOS High Sierra onto a blank hard drive.
'''Note:''' This guide is untested for macOS Catalina, and will probably not work without adjustments.
'''Before you begin, you will need to create a bootable flash drive.''' This requires having access to a Mac currently running High Sierra, in order to download the 7.7 GB High Sierra file in the App Store. You will also need an empty flash drive that can fit 5.4 GB.
[guide|66371|Follow this guide to create a bootable macOS High Sierra flash drive|new_window=true] before proceeding with the guide.