![]() Step 1: Download bootable macOS for WindowsĪs previously stated, a Mac is needed when it comes to creating a bootable macOS USB disk. It’s important to note that I have tested this method on an Intel Mac, so I cannot guarantee its effectiveness on M series hardware. I am using macOS Catalina, but the process described below is compatible with all macOS versions, including Ventura. I used the following the steps to create a macOS High Sierra USB drive and successfully restored my iMac. Since my iMac was the only Mac I had access to, I had no other options until I stumbled upon a method that involved utilising a Windows PC to create a bootable USB installer for macOS. Despite the option for internet recovery being available, I faced repeated failures in downloading the necessary OS files from the servers. In my case, I faced a problem with the boot partition of my iMac and, unfortunately, did not have a Time Machine backup. However, if you don’t have a backup, you must perform a clean installation using a bootable USB/DVD drive or the Internet. Using a Time Machine is the most secure and convenient approach for restoring a faulty Mac in offline mode. How to make macOS USB installer on a Windows PC This article will explore various methods to create a bootable macOS USB for High Sierra 10.13, Catalina, Monetary 12.4, Ventura 13.4 and other macOS versions on Windows PCs and Macs. However, people only utilise this feature when encountering issues with their Mac, particularly when their system fails to boot up. Creating a macOS USB disk from the full installer downloaded from the App Store is straightforward, as Apple provides clear instructions for this purpose. Additionally, it serves as a useful tool for system recovery after a startup failure. I hope this article has helped you learn how to downloaded the complete “Install macOS Catalina.app” file from Apple server.A USB installer can significantly save time when installing macOS on multiple Macs without an internet connection. Let me know in the comments section if you know another way to download the complete “Install macOS Catalina.app” file rather than the tiny incomplete installer. Therefore, you may want to make a backup by having previously copied it to external storage. Note! Remember, the “Install macOS Catalina.app” file deletes itself automatically after macOS Catalina has successfully installed. 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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