Windows 98, Windows Me, Windows 2000, Windows XP (32/64-bit), and Windows Server 2003. Limited Support: Windows Vista and Windows 7 (32/64-bit).
This driver is for the AC'97 codec only. It will not work for modern "Realtek High Definition Audio" (ALC series) hardware. Installation Instructions draiver realtek ac97 4 06 skachat
Ensure your motherboard or sound card uses an AC'97 chipset (like the ALC650, ALC655, or ALC850). Windows 98, Windows Me, Windows 2000, Windows XP
On newer versions of Windows, you may need to disable Driver Signature Enforcement to install this legacy software. It will not work for modern "Realtek High
A system reboot is mandatory for the driver to initialize correctly and for the Realtek Sound Manager to appear in your taskbar. Common Issues
Download the WDM_A406.exe (or similar) package from a reputable archive site, as Realtek has moved these to their legacy repositories.
Right-click the installer and select Run as Administrator .