And lastly, we’ll use Disk Utility to erase your Mac and install macOS Big Sur using the bootable USB device.Ĭleaning your Mac is generally a healthy practice but since we’re about to back your Mac up, it’s worthwhile to get rid of system junk first. Next, you’ll need to create a bootable USB installer (involves another external drive). Then, you’ll need to download macOS Big Sur package to your Applications. The first step is to clean and back up your Mac to some external source. You format your hard drive, and therefore, it keeps no leftovers from the previous macOS.īasic steps to clean install macOS Big Sur

What is a clean install? (Big Sur or any other macOS)Ī clean install means that you install the macOS onto the erased drive.Ī clean install is the opposite of macOS upgrade. Here’s how to perform a clean install of macOS Big Sur with pictures and helpful tips along the way. It also sports a refreshed version of Safari that is 50% faster than Chrome. Those who tried it say that it’s more stable. But if you’re looking for manual solutions, see our ideas below.įeatures described in this article refer to the MacPaw site version of CleanMyMac X.Īpple released macOS Big Sur on November 12, 2020. macOS Big Sur continues the list of Central California landmarks as well as marks the new operating system for Mac. It’s notarized by Apple and is optimized to find issues on macOS Big Sur.

Here’s a tip for you: Download a free version of CleanMyMac X.

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