As macOS Catalina is launched, offering a big baggage of new functionalities, here are the steps, prerequisites, and some key information to install macOS Catalina on your MacBook today.
![Apple's new macOS Catalina](https://i0.wp.com/www.justmyslide.com/wp-content/uploads/2019/10/macOS-Catalina.png?resize=525%2C210)
So before installing macOS Catalina ensure that your Mac machine is connected to the Power Source (charging properly) and fall under the minimum supported Mac level officially mentioned by Apple. Also make a backup of your machine because you never know what could happen while installing.
Now coming to the actual picture of upgrade, you must see macOS Catalina in your App Store for Mac.
![macOS Catalina in Mac App Store](https://i0.wp.com/www.justmyslide.com/wp-content/uploads/2019/10/01-macOS-Catalina-AppStore.png?resize=525%2C303)
Then click on Get. The system automatically start scanning for the OS update in the System Preferences, and ask whether to Download macOS Catalina.
![Downloading macOS Catalina in System Preferences](https://i0.wp.com/www.justmyslide.com/wp-content/uploads/2019/10/Screenshot-2019-10-13-at-4.51.25-PM-e1570966181764-1024x427.png?resize=525%2C219)
Then the macOS Catalina will download and start the installation process. Select Continue to install the OS.
![Installing macOS Catalina](https://i0.wp.com/www.justmyslide.com/wp-content/uploads/2019/10/Screenshot-2019-10-12-at-12.00.41-AM.png?resize=525%2C409)
Then click Agree in the bottom to agree with the Software License Agreement.
![Agreement to install Catalina](https://i0.wp.com/www.justmyslide.com/wp-content/uploads/2019/10/Screenshot-2019-10-12-at-12.03.43-AM.png?resize=525%2C408)
Then click Agree again to proceed with the installation.
![Agreement to install Catalina](https://i0.wp.com/www.justmyslide.com/wp-content/uploads/2019/10/Screenshot-2019-10-12-at-12.03.56-AM.png?resize=525%2C181)
The select Install to start the installation of macOS Catalina
![Location to install the macOS](https://i0.wp.com/www.justmyslide.com/wp-content/uploads/2019/10/Screenshot-2019-10-12-at-12.04.14-AM.png?resize=525%2C408)
Then a pop-up will come to show which apps won’t be optimised according to the macOS Catalina. Select Continue here.
![Incompatible apps for Catalina](https://i0.wp.com/www.justmyslide.com/wp-content/uploads/2019/10/Screenshot-2019-10-12-at-12.04.29-AM.png?resize=525%2C420)
macOS Catalina will start installing.
![Installation in progress of macOS Catalina](https://i0.wp.com/www.justmyslide.com/wp-content/uploads/2019/10/Screenshot-2019-10-12-at-12.11.41-AM.png?resize=525%2C409)
Then installation will finish, select Restart so the machine will adopt all the OS updates.
![Finish to complete the installation](https://i0.wp.com/www.justmyslide.com/wp-content/uploads/2019/10/Screenshot-2019-10-12-at-12.15.33-AM.png?resize=525%2C407)
Then your Mac machine will restart several times for the updates to take place. Then mac will start with the log in screen with Catalina’s wallpaper.
![Login screen with updated wallpaper of macOS Catalina](https://i0.wp.com/www.justmyslide.com/wp-content/uploads/2019/10/LWScreenShot-2019-10-12-at-12.47.09-AM.png?resize=525%2C328)
Then you need to select Continue with Find My option in order to locate the device.
![Turn on Find My to locate the device](https://i0.wp.com/www.justmyslide.com/wp-content/uploads/2019/10/LWScreenShot-2019-10-12-at-12.47.25-AM.png?resize=525%2C328)
Then Continue with Analytics.
![Continue with the Analytics](https://i0.wp.com/www.justmyslide.com/wp-content/uploads/2019/10/LWScreenShot-2019-10-12-at-12.47.39-AM.png?resize=525%2C328)
Then Continue with Screen Time updates.
![Continue for the Screen Time updates](https://i0.wp.com/www.justmyslide.com/wp-content/uploads/2019/10/LWScreenShot-2019-10-12-at-12.47.56-AM.png?resize=525%2C328)
So now you have completely installed the macOS Catalina on your Mac machine.
Now few things to take care of, that you now need to:
- allow few apps so that they can send notifications in the Notifications bar
- locate the folder of your Google Drive and Dropbox to the actual folder, so that it will start syncing
- delete or uninstall the incompatible apps from the application, as they won’t work anyhow
Now enjoy the dark theme in your mac and Sidecar with your iPadPro.