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Hey Guys! I'm missing the d3dx9_39.dll file.

Daunyelson··1 votes·1,618 views

Hey guys!! I have a serious problem. I love LOL, I'm a dedicated player, and I'm looking to be a part time streamer but League of Legends does not seem to be working for me. I got league on a new pc that I built and something seems to be wrong. This is the problem. I log in. All good. I get into the queue. Still fine... I pick a champ and then as soon as the game starts, (and where the loading screen is supposed to be, I get this. "System Error The Program can't start because d3dx9_39.dll is missing from your computer. Try reinstalling the program to fix this problem." What do I do to get league running??? My operating system is Windows 10 Pro Please help me!!

2 Comments

ModDaenrysTargaryen1 votes

I would recommend you submit a Support Ticket to Riot. They might be able to help you with this issue.

There is also the Hextech Repair Tool that might help.

RIP Tahm Kench1 votes

If all else fails, this might be solved from downloading DirectX 9 redistributable from Microsoft 's official website.

It's supposed to automatically be installed when you install league though.

Edit: Old Riot response suggesting the same thing as i did. (https://boards.na.leagueoflegends.com/en/c/help-support/vrEpGfzz-d3dx9-39dll-is-missing-from-your-computer)

Direct link to DX9 download on Microsoft's website: https://www.microsoft.com/en-us/download/details.aspx?id=34429

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