Save a copy of directx_Jun2010_redist.exe to an external hard drive or cloud storage. You never know when Microsoft will remove it entirely.
downgrade your system. It simply adds "side-by-side" libraries that games can choose to use if they need them, leaving your DX11 setup untouched. Eight Forums The Best Way to Download (Redistributable vs. Web) For the most reliable experience on Windows 7 64-bit, the Offline Redistributable directx 9 download windows 7 64 bit better
This method gives you the same full redistributable as the June 2010 version without relying on an active internet connection for future reinstalls. It is better than running the web installer each time. Save a copy of directx_Jun2010_redist