In the Erase tab, select Mac OS Extended (Journaled) as your format.

You can install Catalina over your current macOS, keeping all its data untouched.

Major updates of your favorite native apps, including Photos, Reminders, and Find My.

If you need more reasons, find a complete review of the new Catalina features here.

The rules are not much different from the Mojave compatible Macs, except for a few older Mac Pro models that Catalina will no longer support.

Note that it will take your Mac an hour or two to run the upgrade.

Its your perfect choice if your Mac has a single non-partitioned drive where all the files are stored.

Simply backup an entire drive and go ahead with the installation.

If you have a spare drive or your startup drive is divided into volumes, this might be a good option to explore.

It involves lots of cleaning and securing your files, though.

You can take care of all the data stored on your old OS manually, or by using a few easy utilities.

All the junk, leftovers and old caches will be gone in a moment.

In one smart scan, the app will spot and remove everything from outdated caches to file duplicates.

This will help you see the functionality that Catalina will be missing, and find the right alternatives in advance.

In CleanMyMac X, navigate to the Uninstaller tab, filter apps by 32-bit, and click Uninstall.

The app is available on Setapp and so is the backup utility for your Mac well talk about in a moment.

Thats easy with Get Backup Pro, one of the best backup apps for Mac.

Unlike Apples native Time Machine, Get Backup Pro has the functionality of creating bootable clones which gives you absolute peace of mind.

In case theres a tech problem with your Catalina installation, the drive can be recovered at any time.

Plus, its an easy way to move your files to the new OS in batch.

First, because macOS 10.15 is truly great.

Second, because Apple removes an old macOS installer from the App Store once the new version is out.

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Wait for the download process to finish and click File Quit as soon as the installer launches.

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