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USB Headset Troubleshooting: Audio Issues on a Windows 7 PC

Question

I have no audio or intermittent audio issues when using a Plantronics USB headset on a Windows 7 PC. What can I do?

Answer

Windows 7 SP1 has numerous fixes for USB audio issues, and it should be installed first. Also, the following Windows 7 USB audio-related hotfixes should then be installed if they aren't already present: