How to Clean Install macOS Big Sur: A Step-by-Step Guide

Installing macOS Big Sur can be a bit of a process, but with this guide, you'll be able to do it easily and efficiently. In this article, we'll walk you through the steps required to clean install Big Sur on your Mac.

The Download Process

Before you start the installation process, you need to download Big Sur from the Apple Store. This could take a little while, as the download is 12.6GB in size. Simply click Continue and follow the prompts to enter your Apple ID and password. Once you've done this, the download will begin.

Preparing Your USB/External Drive

Once you've downloaded Big Sur, you'll need to prepare your USB/external drive. You can do this by selecting 'macOS Extended (Journaled)' as the format type. Make sure the drive is named 'Untitled' before inserting it into your Mac.

Formatting Your USB/External Drive

To format your USB/external drive, follow these steps:

1. Insert the USB/external drive into your Mac.

2. Open Disk Utility and select the drive from the list of available disks.

3. Click on the 'Erase' tab and select 'Quick Erase' from the drop-down menu.

4. Confirm that you want to erase the drive by clicking 'Erase'.

Alternative Method: Using macOS Recovery

There is an alternative method for installing Big Sur without using a bootable copy of the installer. This method uses macOS Recovery, which allows you to complete the installation over the internet.

Why Clean Install Mac OS Big Sur?

Many people choose to clean install their Mac because it's running slow or not performing as well as they'd like. Others may do this if they suspect their Mac is infected with a virus. Whatever your reason for wanting to clean install, we'll walk you through the process step-by-step.

Installing Big Sur on your Mac can be a bit of a process, but with these steps, you should be able to do it easily and efficiently. Whether you're looking to improve performance or start fresh, cleaning installing Big Sur is a great option.

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