Before you "hot download" and install Catalina, remember that If you rely on old versions of Adobe Creative Suite, Microsoft Office 2011, or legacy games, these will break immediately upon upgrading to 10.15. Check your apps via System Report > Software > Legacy Software before proceeding.
Enter your admin password and wait for the process to reach 100%. macOS Catalina System Requirements
Open Disk Utility , select your USB, and format it as Mac OS Extended (Journaled) with a GUID Partition Map . Name the drive "Catalina". hot download macos catalina 10157 dmg
Direct Download: macOS Catalina 10.15.7 DMG (Official Links)
Once you have the installer file, you’ll likely want to put it on a USB drive (16GB minimum) to perform a clean install. Before you "hot download" and install Catalina, remember
Version 10.15.7 is the final, most stable "point release" of Catalina. It includes critical security updates and bug fixes that addressed issues with Wi-Fi connectivity and graphics card performance. If you are going to run Catalina, this is the version you want. Official Download Methods 1. The App Store Method (Recommended)
The installer will download directly into your folder. How to Create a Bootable USB from the DMG/Installer macOS Catalina System Requirements Open Disk Utility ,
Here is everything you need to know about downloading and installing macOS Catalina 10.15.7. Why 10.15.7?