Goto Start, Controll Panel, Apperance and themes, Folder options, click view, and uncheck Hide extensions for known file types.
Now go to C:/Windows/system32/drivers/wdf01000.sys file and rename it wdf01000.sys.bak After hours of cleaning the reg and all of the other fixes this worked for me. I added the .bak and installed the software update with no problem. Hopes this helps.
*when done go back and check hide extensions for known file types*
now install the software.
there ya go try this