"Installing old DirectX files will break my modern games." Fact: It will not. Modern DirectX 12 and Vulkan games use completely different file paths ( dxgi.dll , d3d12.dll ). The legacy files sit inert in the system folder until an old game calls them.
You can download the full offline redistributable directly from the Microsoft Download Center. Key Information directx enduser runtimes june 2010 microsoft download full
The June 2010 runtimes install alongside your existing DirectX 11 or 12 files. "Installing old DirectX files will break my modern games
Modern versions of Windows include core DirectX files, but they do not include the massive library of specific helper DLLs used by games developed between 2002 and 2010. You can download the full offline redistributable directly
It includes all bi-monthly updates for DirectX 9.0c, 10, and 11 released up to June 2010. This ensures compatibility with a vast library of games released between 2005 and 2013.