What is DirectX?

DirectX is a set of components in Windows that allows software, primarily and especially games, to work directly with your video and audio hardware. Games that use DirectX can use multimedia accelerator features built-in to your hardware more efficiently which improves your overall multimedia experience.

Check which version of DirectX is installed

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The DxDiag tool reports detailed information about the DirectX components and drivers installed on your system and can be used.

Windows 10

From Start, type dxdiag in the Search box, and then press enter.
Tap or click on dxdiag from the results.
Check DirectX Version on the first page of the report in the System Information section.

Windows 8.1 or 8

Swipe in from the right edge of the screen, and then tap Search. Type dxdiag in the search box. Or, just type dxdiag from Start.
Tap or click on dxdiag from the results.
Check DirectX Version on the first page of the report in the System Information section.

Windows 7 or earlier

Click Start, type dxdiag in the search box.
Tap or click on dxdiag from the results.
Check DirectX Version on the first page of the report in the System Information section.

DirectX versions and updates by Operating System

Windows 10 and Server 2016 Technical Preview

DirectX 11.3 and 12 are included with these Windows versions.

Updates will be available through Windows Update. There is no stand-alone package for these versions of DirectX.

Windows 8, RT, 8.1, Server 2012, and Server 2012 R2

DirectX 11.1 is included in Windows 8, Windows RT, and Windows Server 2012. There is no stand-alone update package for DirectX 11.1. You can only install this DirectX version through Windows Update in Windows 8, Windows RT and Windows Server 2012.
DirectX 11.2 is included in Windows 8.1, Windows RT 8.1 and Windows Server 2012 R2. There is no stand-alone update package for DirectX 11.2. You can only install this DirectX version through Windows Update in Windows 8.1, Windows RT 8.1 and Windows Server 2012 R2.

Note To upgrade DirectX further, you will need to upgrade your operating system.

Windows 7 and Server 2008 R2

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DirectX 11.0 is included in Windows 7 and Server 2008 R2. There is no stand-alone update package for this version. You can update DirectX by installing the service pack and update listed below.
DirectX 11.1 is available for Windows 7 SP1 and Windows Server 2008 RS SP1, with Platform Update for Windows 7 and Windows Server 2008 (KB2670838).

Note To upgrade DirectX further, you will need to upgrade your operating system.

Windows Vista and Windows Server 2008

DirectX 10 is included in Windows Vista. There is no stand-alone update package for this version. You can update DirectX by installing the service pack and update listed below.
DirectX 10.1 is included in Windows Vista SP1 or later, and Windows Server SP1 or later. There is no stand-alone update package for this version. You can update DirectX by installing the service pack and update listed below.
DirectX 11.0 is available for Windows Vista SP2 and Windows Server 2008 SP2, with KB971512 installed.

Note To upgrade DirectX further, you will need to upgrade your operating system.

Windows XP and Windows Server 2003

DirectX 9.0c is available for Windows XP and Windows Server 2003 by installing the DirectX 9.0c End-User Runtime.

Some applications and games require DirectX 9. However, your computer includes a more recent version of DirectX. If you install and then run an application or game that requires DirectX 9, you might receive an error message such as 'The program can't start because d3dx9_35.dll is missing from your computer. Try reinstalling the program to fix this problem.'

To resolve this issue, install DirectX End-User Runtime.

Notes

Dv Driver Video Codec Directx 9 0

When you run this package, no change is made to your version of DirectX, Direct3D 9, Direct3D 10.x, Direct3D 11.x, DirectInput, DirectSound, DirectPlay, DirectShow, or DirectMusic.
To upgrade DirectX further, you will need to upgrade your operating system.

DTV Driver