I am working with a computer that consistently hangs on shutdown but only if the computer has been on all day. It will give me an error that says "rundll32.exe is not responding". I got a command line tool to show me what process is being used, which was WMIC /OUTPUT:C:\ProcessList.txt PROCESS get Caption,Commandline,Processid. But once the rundll32.exe error comes, the pc is already in shutdown mode and I cannot access a command line? Can anyone tell me a way to find out what is causing this hang? Thanks.