Even if Windows 10 is 64-bit and fully updated, your graphics card (GPU) must be to utilize its features. DirectX 12 offers "closer-to-metal" access, which reduces CPU overhead and allows games to utilize multiple CPU cores more efficiently. If your hardware is older, it may "fall back" to using DirectX 11 or lower, even if the software version 12 is present on your OS.
Since there is no "download button" on a website for a standalone DirectX 12 installer, you should follow these steps to ensure you have the latest version: baixar-directx-12-windows-10-64-bits
DirectX 12 is a crucial set of components in Windows 10 that allows software—primarily games—to work directly with your video and audio hardware. If you are looking to "baixar" (download) DirectX 12 for a 64-bit Windows 10 system, it is important to understand that and cannot be downloaded as a standalone redistributable package in the traditional sense. Understanding DirectX 12 on Windows 10 Even if Windows 10 is 64-bit and fully