Installing DirectX 9 will not "downgrade" your system; it simply adds side-by-side components that older games need to run. Run as Administrator : Right-click the downloaded file (e.g., directx_Jun2010_redist.exe ) and select Run as administrator Extract Files
Double-click and accept the agreement. The installer will scan your Windows 7 64-bit system and add only the missing components. This will not overwrite your DirectX 11 files; it simply lives alongside them. Is 64-Bit Support Included? directx 9 download windows 7 64 bit better
: A complete 95.6 MB package recommended if you have a slow internet connection or need to install it on multiple offline PCs. Installation Guide for Windows 7 64-bit Installing DirectX 9 will not "downgrade" your system;