The complete installer should be around 8.1 GB rather than the tiny (just tens of megabytes) incomplete installer that requires additional downloads. For this simply select the file and click the Spacebar key (or right-click on the file and choose “Get Info”). You can confirm that you have the complete “Install macOS Catalina.app” file by getting info on the file. Now you have the complete “Install macOS Catalina.app” file downloaded. Note! The download will be completed when you are prompted to choose an installation method. Now, step by step guide.Ĭlose the “macOS Catalina Patcher” app when the download is complete and locate the “Install macOS Catalina.app” file you downloaded. Let’s beginĭownloading the complete “Install macOS Catalina.app” file from Apple server using the “macOS Catalina Patcher” app is a really easy process. If you are not comfortable with using unvetted and unverified software, do not follow this process. Note! This method relies on a third party app from an unverified third party source. For our purposes in this particular walkthrough, we will use the app only to download the complete installer file. This app is intended for those with unsupported Macs and Hackintosh users, but any Mac user can use the app to be able to download the complete macOS Catalina installer file from Apple server. In this workaround, we’re going to use the macOS Catalina Patcher app from the. In this tutorial, I’ll show you how to download the complete “Install macOS Catalina.app” file from Apple server using the “macOS Catalina Patcher” app instead of via the Mac App Store.Ī similar mini-installer issue occurred previously with some users getting a tiny incomplete macOS High Sierra installer and macOS Mojave installer too and I covered a similar workaround here and here to download the complete installer file from Apple server. Additionally, it does not allow to create a macOS Catalina USB installer drive for use on multiple computers. The tiny (just tens of megabytes) incomplete installer requires an internet connection during usage to download the rest of the Catalina update files.

Attempting to download macOS Catalina from the Mac App Store you may find that a small version of the “Install macOS Catalina.app” file downloads to the “Applications” folder, rather than the complete 8.1 GB installer file.

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