For most modern systems, you don't actually need to download a separate installer for the latest version.
DirectX is a suite of technologies developed by Microsoft that serves as a bridge between your PC’s hardware (like your graphics card and sound card) and the software you run, such as video games and multimedia applications. Without it, developers would have to write specific code for every different type of hardware, making modern gaming nearly impossible on a PC. download directx
If you are looking to , the process depends on which version of Windows you are using. How to Download and Update DirectX For most modern systems, you don't actually need