Now confirm it by typing Y and press enter This will also install OpenCore on the USB drive. Don’t forget to change the number based on your USB drive number shown on the makeinstall window. In this case, my Sony USB drive is shown with a number 3. In the following window, make sure you see your USB drive. Now, right-click the file “MakeInstall.bat” and choose Run as Administrator. And then open the gibMacOS folder once again. Plug your USB drive to one of your USB ports. OK so the second step of this project is completed. This will download the macOS Catalina 10.15.4 to the gibMacOS folder.Īfter the download process is completed, you will see new folder called macOS Download under the gibMacOS folder To proceed, simply type 5 and then press Enter. Now we are going to choose the macOS Catalina Full Install from the list. Type R and then press Enter to enable the Recovery option only.