xaudio2_9.dll_
xaudio2_9.dll Is Missing
The error xaudio2_9.dll on Windows 10/11 indicates a specific failure categorized as "xaudio2_9.dll Is Missing" under DLL Error. This guide walks you through the most likely causes and the correct fix order.
What Actually Happened
A shared support library is missing. Reinstalling the DirectX End-User Runtime (audio engine component) solves this.
Symptoms
App fails to launch with 'xaudio2_9.dll was not found'
Common Causes
- the DirectX End-User Runtime (audio engine component) is missing or corrupted on this PC
How to Fix It
-
01
Reinstall the DirectX End-User Runtime (audio engine component) from Microsoft official downloads
-
02
Run system repair:
sfc /scannow
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Root Cause Breakdown
Application dynamically linking against xaudio2_9.dll failed at runtime entry.
Should You Worry?
Low risk. Only affects the specific application.
Power-User Tip
Install both x86 and x64 redistributables, even on 64-bit Windows.
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