This is a web installer (~300KB) that downloads ~90–100MB of cab files during installation.
So, while you likely already have the core software, downloading the "End-User Runtime" ensures you have every single file and update required by older games. directx 11 for windows 7 download
DirectX 11.1 was released with Windows 8. Windows 7 received a via KB2670838 (Platform Update for Windows 7). This is a web installer (~300KB) that downloads
To fully support DirectX 11 and the games that rely on it, you must ensure your Windows 7 is updated to Service Pack 1 (SP1) . Without SP1, many DirectX features may not function correctly. Windows 7 received a via KB2670838 (Platform Update
KB2670838 has been known to cause graphical glitches in some older games and blue screens on certain hardware. Install only if required by a specific game.
DirectX 11 is natively included in Windows 7. However, "natively included" doesn't always mean you have the latest updates or the specific runtime files required by certain legacy games.