Two IWD Bus Enumerator drivers listed in Device Manager, and one of them has an error
After upgrading to the Windows 8.1 operating system, there may be an issue where two IWD Bus Enumerator drivers are listed in Device Manager, with one of them showing an error (yellow exclamation point).
To resolve the issue, right-click on IWD Bus Enumerator with the yellow exclamation point and click 'Uninstall'. The driver will be removed.
The issue will not occur after removing the device with the error.
NOTE: This issue is being investigated by both Sony and Microsoft. As soon as more information becomes available, this solution will be updated.
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