Citat: Realtek High Definition Audio Driver for Windows 7

Driver Installation/Removal Procedure For Realtek High Definition Audio Codec

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Install

Unpack with any archiver

Setup Driver at first time

Windows 2000 , XP

Step 1. Before installing the Realtek High Definition Audio Driver, Press the
[Cancel] button if Windows detect the Multimedia Audio device.

Step 2. Run the setup.exe program to start the installation.

Step 3. Click on [Next] to continue the procedure. If the Windows popup
"Digital Signature Not Found" message, press [Yes] to continue the
installation.

Step 4. Finally, select to restart the system and press [Finish] to complete
the installation.

Windows Vista, Windows7

Step 1. Run the setup.exe program to start the installation.

Step 2. Click on [Next] to continue the procedure. If the Windows popup
"Windows can't verify the publisher of this driver software" message,
press "Install this driver software anyway" to continue the installation.

Step 3. Finally, select to restart the system and press [Finish] to complete
the installation.