Idt High Definition Audio Codec Driver Causing Problem

Idt high defintion audio codec driver causing problems with windows 7 after upgrade. Driver upgrade is not working, due to "digital signature". At some point after upgrading to windows 7 my sound driver began giving me problems. It would lock up any program that attempted to use sound, even simple sounds such as the "ding" sound in windows explorer.

I attempted to upgrade my driver to it's most recent version through the hp website, but after installing the driver, it says that my "digital signature" cannot be verified. (Code 52). Hp offered no support, neither did the manufacturer of the driver, idt.

Idt high definition audio codec

Version i am attempting to upgrade to
6. 10. 6225. 0

Computer model
Hp pavillion notebook dv7t-2000
Windows 7

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7. Select dont search. I will choose the driver to install¯ and click next
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