How do I fix "a2dpsrv.dll is missing" error?

Reinstall the software that requires a2dpsrv.dll, or install the latest drivers for your hardware.

Is it safe to download a2dpsrv.dll?

Yes, when downloaded from official sources. We recommend installing the official Windows Device Drivers package instead of downloading individual DLL files. This ensures you get a digitally signed, verified file directly from Microsoft.

Where should I put a2dpsrv.dll?

For 64-bit applications, place in C:\Windows\System32. For 32-bit applications on 64-bit Windows, place in C:\Windows\SysWOW64. However, we strongly recommend using the official installer instead of manual placement.

Driver Version 10.0.22621.0

Fix a2dpsrv.dll Missing Error

Scanned: 2025-11-30

MD5 Verified

0.3M+ downloads

⚡ Quick Fix: Install Windows Device Drivers

This is the recommended fix from Microsoft. It will restore a2dpsrv.dll and all related runtime files automatically.

Download Official Package From Microsoft.com

Common Error Messages

✗ a2dpsrv.dll driver error

✗ Device driver a2dpsrv.dll failed to load

What is a2dpsrv.dll?

A2DPSRV.dll is a Windows device driver component.

How to Fix "a2dpsrv.dll is missing" Error

1 Method 1: Run System File Checker

sfc /scannow

Open Command Prompt as Administrator and run this command. It will scan and repair corrupted system files.

2 Method 2: DISM Repair

DISM /Online /Cleanup-Image /RestoreHealth

If SFC doesn't work, run this command to repair the Windows image.

Manual Download (Last Resort)

⚠️ Important Warning

Downloading individual DLL files is not recommended. We strongly advise using the official runtime package above. Only use manual download if the official method fails.

If you must manually place the file:
• 64-bit apps: C:\Windows\System32
• 32-bit apps on 64-bit Windows: C:\Windows\SysWOW64