Windows 10 frequently replaces and updates drivers alongside other Windows updates so it is vital to keep Windows Updated. You can do that by following our guide to Rollback Drivers in Windows 10. If League of Legends DirectX or error 004 started appearing after updating graphics drivers, you can revert to an earlier version of the driver with rollback driver option. To resolve this, update your graphics drivers by following our guide to Update Graphic Drivers in Windows 10. The performance of DirectX is linked to your graphics card and outdated graphics drivers may cause it to malfunction. If you still get an unknown DirectX error has occurred and League of Legends cannot start error message, follow the methods below. It will refresh Operating System and address other minor software issues. Here are some possible reasons behind this error message.īefore going to the methods to fix League of Legends DirectX error, we recommend that you restart your PC. Please make sure your video card is using the latest video drivers from the manufacturer Some players are unable to start League of Legends due to DirectX error warning which says Īn unknown DirectX error has occurred and League of Legends cannot start.
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How to Fix League of Legends Directx Error in Windows 10
Method 6: Remove Registry Entries & Reinstall DirectX.
Method 5: Delete Game.cfg File (If Available).How to Fix League of Legends Directx Error in Windows 10.