DirectX 10 for Windows

DirectX 10 is a version of DirectX, Microsoft's collection of programming interfaces for graphics, sound and input in Windows games and multimedia apps. If you are looking to download DirectX 10 because a game asks for it, the key fact is this: it is already part of Windows, and what an older game usually lacks is the extra runtime libraries that Microsoft distributes separately.

What is DirectX 10?

DirectX sits between a game and the hardware. Instead of writing code for every graphics card, developers call DirectX functions, and the video driver translates them for the specific GPU. DirectX 10, and its Direct3D 10 graphics component, arrived with Windows Vista and was a clean break from DirectX 9: it introduced a new driver model, a unified shader architecture, geometry shaders and stricter rules for what compatible hardware must support. Games of that period used it for improved lighting, shadows and effects. Later versions, DirectX 11 and 12, build on the same foundations, and modern Windows includes all of them. A graphics card designed for DirectX 11 or 12 also runs DirectX 10 games.

Is there a separate DirectX 10 installer?

No. Microsoft never released DirectX 10 as a standalone package for Windows XP; it exists only as part of Windows Vista and newer systems. Download sites that offer "DirectX 10 for XP" distribute unofficial or fake files.

Then why does a game say a DirectX file is missing?

Many games from that era rely on helper libraries, such as d3dx10 or xinput files, that are not included in Windows by default. They come with the DirectX End-User Runtime. Installing it adds the missing files alongside what Windows already has, without replacing the system version.

How do I install the runtime?

1. Open Microsoft's DirectX End-User Runtime Web Installer page, or the offline redistributable package if the PC has no internet.
2. Run the installer and decline optional browser offers.
3. For the offline package, extract it to a folder and run DXSETUP.exe.
4. Restart the game.

According to catalogue data, the package listed here is about 95.62 MB.

What else does my PC need?

A graphics card with DirectX 10 support or newer and a current driver from the card's manufacturer. Microsoft describes the driver side on its Direct3D software requirements page. Run dxdiag from the Start menu to see your DirectX version and driver details.

Is it safe and free?

DirectX is free. Get the runtime only from microsoft.com; DLL download sites often supply outdated or infected files.

Pros and cons

• Pro: built into Windows, nothing to buy.
• Pro: runtime fixes most missing DLL errors.
• Con: no official version for Windows XP.
• Con: confusing naming for ordinary users.
• Con: the old runtime installer may offer extra software.

What related tools are there?

Our site also has DirectX 9.0c, DirectX 11, DirectX 12 and the DirectX Runtime. For graphics drivers, see NVIDIA Control Panel, Driver Easy and DriverMax.