We earlier covered the importance of having device drivers and a utility to update sound, video, network and other drivers in Windows automatically. Among which the AC97 and high definition audio drivers have much requirement among entry level and medium PC users. AC97 and high dentition audio codecs includes standards specified by Intel to process multi-channel audio from compatible hardware. Hardware vendors including Realtek, Conexant and Along devices manufacture AC97 and high definition audio chips and they periodically releases driver updates to improve the hardware performance with Windows. But like many other sound drivers Realtek high definition audio driver also started showing incompatibility issues when Microsoft started issuing Windows 7 test builds .

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