The log related to the Realtek HD Audio sound card driver has been updated many times before on Lin's network blog, such as: Realtek HD Audio Driver version 2.09 update download, genuine complete driver solving the Realtek HD ALC883 microphone volume adjustment issue, driver solution for Realtek HD ALC883 microphone volume adjustment problem, recommended update of Realtek HD Audio driver version 1.90 download, and methods to resolve conflicts between system HD bus drivers and Realtek HD Audio sound card drivers. Not long ago, Realtek released the latest version 2.25 driver, which not only added some manufacturer information and logos, but is also a Windows 7 WHQL certified driver. It is recommended to update.