Oracle hides its downloads behind a registration wall. Here’s the direct route:
Oracle Database 19c is a popular relational database management system used by many organizations worldwide. If you're looking to download and install Oracle 19c on your Windows 10 64-bit machine, you've come to the right place. In this article, we'll walk you through the process of downloading and installing Oracle 19c on Windows 10 64-bit. Download Oracle 19c For Windows 10 64 Bit
unless you specifically need the zip.
Fix: Stop the "Windows Remote Registry" service and set it to Manual. Oracle’s installer tries to verify admin privileges and gets confused. Downloading and Installing Oracle 19c on Windows 10