Updating direct x
Although Direct X is included as an integral part of the Windows operating systems, if you feel the need to update it, you can update Direct X via Windows Update by applying the latest service pack or platform update – or you download and install it directly. You could use the Windows Update to update your Direct X to the latest available version.
Apply the latest service pack or platform update which may be offered to your system. You can search for Direct X from the Microsoft Download Center.
For the same reasons noted in the preceding question, Direct3D 11 and related APIs are not available on Windows XP.
What changes were made to the Direct X runtime for Windows 8/7?
You can also manually download and apply the update package that updates Direct X to the latest version for your operating system. The Direct X End-User Runtime Web Installer will install the Direct X files your computer is missing.
Once you have downloaded and run the web installer, you will be required to restart your system.
Developers can tap into the newest graphics API to bring powerful GPU graphics to their most innovative titles.