In that case, you’ll go directly through Apple’s servers.Īs soon as the macOS Catalina installer download is finished, it will auto-launch. Some users report that the App Store doesn’t offer the full installer for download, depending on the model. You can download the installer from Apple’s servers or from the Mac App Store. It creates bootable clones, which you can recover after you install macOS Catalina. But if you have cloud storage available, you can manually back up the data you need.Īnother way to do this is through a third-party app: Get Backup Pro. Mac gives you a default app (Time Machine) to do this. Of course you’ll back-up the data you need and you’ll restore it once you get the system installed. With this process, you get rid of all unwanted data and end up with a computer that feels like brand new. If your work depends on them, maybe you want to postpone the process and get back to this guide on how to clean install macOS Catalina when the developers upgrade those apps to 64-bit versions.īut if you don’t want those apps and you don’t want any junk left behind after the install, you should do a clean one. You can’t use them with the new operating system. If you have any 32-bit apps, you don’t want them on Catalina. Step-By-Step Guide on How to do a Clean Install of macOS Catalinaįirst, let’s explain what a clean install is. You’ll do well if you follow all the steps. The process may seem overwhelming at first, but don’t worry.

We’ll give you easy tips on how to clean install macOS Catalina. But for older computers, a clean install is the way to go. That’s great for newer Macs that don’t have much junk in them.

One of them is an upgrade on the current operating system. Apple gives us two options on how to install Catalina.

Clean install macos from usb