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teroche
Fanfold Paper
Posts: 10
Registered: ‎06-02-2009
Location: Bethlehem PA USA
Views: 7,908
Message 1 of 7

X1 Carbon iwd bus enumerator error after windows 8.1 upgrade

Upgraded my X1 Carbon (touch) to Windows 8.1 today.

 

The LSC reports that iwd bus enumerator is not working. Going to the device manager verifies this. But, there are two entries in the device manager for the iwd bus enumerator: the first listed is working properly, the second listed is not working properly. It has this message:

 

This device is not working properly because Windows cannot load the drivers required for this device. (Code 31)

Object Name already exists.

 

Looking for a remedy.

 

Tim

paulbyron
Fanfold Paper
Posts: 7
Registered: ‎10-18-2013
Location: CA
Views: 7,777
Message 2 of 7

Re: X1 Carbon iwd bus enumerator error after windows 8.1 upgrade

Me too - exact same problem

mickyhunt
What's DOS?
Posts: 2
Registered: ‎10-19-2013
Location: New Jersey
Views: 7,617
Message 3 of 7

Re: X1 Carbon iwd bus enumerator error after windows 8.1 upgrade

I resolved my issue by going to device manager selected View then View Hidden Devices.

 

Expand System Devices

 

Found two IWD BUS devices and one had the yellow triangle. I uninstalled that item and restarted my Carbon X1 and the error was gone. The original working IWD BUS remains active.

 

teroche
Fanfold Paper
Posts: 10
Registered: ‎06-02-2009
Location: Bethlehem PA USA
Views: 7,554
Message 4 of 7

Re: X1 Carbon iwd bus enumerator error after windows 8.1 upgrade

Uninstalling the second, non-functioning device driver seems to work for me, too.

 

Tim

 

DangerMouse
HDMI
Posts: 275
Registered: ‎05-06-2009
Location: GB
Views: 7,267
Message 5 of 7

Re: X1 Carbon iwd bus enumerator error after windows 8.1 upgrade

I too have uninstalled the second one.


Be good to know what they do and if uninstalling the second one might be not a good idea.


DangerMouse --||-- Current Machines: T480S/P52S
eyeland
Fanfold Paper
Posts: 18
Registered: ‎01-07-2010
Location: Denmark
Views: 4,836
Message 6 of 7

Re: X1 Carbon iwd bus enumerator error after windows 8.1 upgrade

+1

same exac situation on my w530 - would be nice if this was officially looked in to...

BenEadir
Blue Screen Again
Posts: 11
Registered: ‎01-04-2013
Location: Ireland
Views: 4,775
Message 7 of 7

Re: X1 Carbon iwd bus enumerator error after windows 8.1 upgrade

Same problem with the X1 Carbon.  I deleted the 2nd one but now I can't find the 1st one.  Any suggestions?

 

What does the IWD Bus Enumerator actually do?

 

I'm having a problem extending my display to a 2nd monitor.  Is it related to that?

 

Ben

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