I understand your frustration, in fact it does not seem to be a common issue at all.
Currently I am checking with the development team to see what else we could troubleshoot on this to find the root cause as we are not able to replicate your problem.
Now, concerning the Display Audio, it seems like a software corruption to me. Have you tried rolling back the driver for this and use the one that was installed before?
Have you checked if your system BIOS has an option to disable this possibly? Have you tried updating the BIOS and setting the system defaults just to test?
Another option would be using a restore point in the operating system if that was created before this.
In the other hand, there might be a test you could do, using a separate hard drive (or partition), you could try a copy of Microsoft* Windows* 7 x32 to see if the issue with Creative Cloud remains