To do this, you can either manually move your files somewhere else or use Time Machine. If you don't want to encounter a similar situation, then consider taking a backup of your data beforehand. There are times when users end up losing their data while upgrading to a new operating system.

Sign-out or offload apps with too much data.

Delete Safari History or any other browser data.

Get rid of any file that is not important.

Uninstall all the old apps that you no longer need.

Simply follow these suggestions to clean up your system quickly: You mustn't have a lot of unwanted space on your Mac before upgrade to macOS Catalina. Here are all the devices that would support the new macOS Catalina: Ideally, if your system runs on macOS Mojave (except 2010-12 Mac Pros), then it would be compatible with macOS 10.15 too.

Check that your Mac is compatible with macOS Catalinaįirst things first – make sure that your Mac would support the new OS or not.

For instance, you should check if your Mac is compatible with macOS Catalina or it has enough free space on it or not. Part 1: Preparations for Installing macOS Catalina 10.15īefore you start the installation process, there are certain things that you need to take care of.

Part 4: How to Recover Lost Data after Updating to macOS Catalina.

Part 3: How to Clean Install macOS Catalina 10.15.

Part 2: How to Upgrade to macOS Catalina 10.15.Part 1: Preparations for Installing macOS Catalina 10.15.

High sierra to catalina