Hello try to find the newest driver here:

http://support.creative.com/kb/showarticle.aspx?sid=61105

Or here by selecting the model:

http://support.creative.com/Products/product_list.aspx?catID=1&CatName=Sound+Blaster#

You may have to disable the build in soundcard on the mainboard, in the device manager when you install the driver for the creative sound card. Here could be a conflict between these to this is maybe why you have the code 12.

Here is some info about the code 12:

http://technet.microsoft.com/en-us/library/cc732199%28v=ws.10%29.aspx

I know it`s probably not your windows system, but the fault is basicaly the same.

Good luck