Problem Description

Microsoft Vista supports upgrading an existing Windows system. During this upgrade process, previously installed device drivers are copied and reinstalled on the new Vista installation. This can involve upgrading from an earlier version of Windows, or from another version of Vista (eg. Vista Home to Vista Ultimate).

During this process a problem occurs resulting in some of the files necessary for the IDT driver installation to become inaccessible. This can cause the IDT audio driver to stop working.

This problem can be fixed by installing a new audio driver, or by reinstall the existing driver. However, before doing this, the currently installed driver must be uninstalled using the process described in this document.