This will bring up the MacOS Catalina Patcher window, press Continue to start the installation process.Ħ. Once the download completes, click on the patcher file.ĥ. Press the blue button which says Download Latest Version.ģ. Go over to the download page for Catalina on DosDude’s website ( ).Ģ. Have multiple Mac devices with a metered internet connection Download MacOS Using DosDude’s Patcherġ. When you do not have a reliable internet connection to upgrade your MacOS like you normally wouldĤ. There can be many situations where you may not have access to the App Store, yet you need to get hold of a copy of the MacOS:ģ. Why Do You Need to Download MacOS without App Store? However, what if you do not have access to the App Store? Don’t panic! Here we have documented how you can download MacOS Catalina without using the App Store, even if you are on Windows. All you need to do is to update your system from the App Store. Upgrading your MacOS to their latest OS is simple.