Installed Windows 10 on my main PC today (upgrade, activate, then wipe and install) and found a couple of issues with the Creative Z W10 driver that I thought I'd share to try to save someone the head scratching I've been having.
Control Panel takes ages to open. By ages, I mean up to 5 minutes. This happens if I have any other sound outputs on my system. In my case, my motherboard has onboard sound (disabled in BIOS) and both my AMD GPUs show up as sound output devices. I tried disabling them in Windows Control Panel > Sound, but this didn't work. I had to go into Windows Device Manager and disable them there. Now the Control Panel happily opens in a second.
Control Panel breaks ULPS. ULPS is where an inactive AMD goes to sleep, with the fan shutting off and the GPU showing as 0Mhz clock and memory speed. In my case, my second GPU should be asleep all the time unless I'm in a full-screen game. I've found with the Creative Control Panel open, my second GPU wakes up and goes into normal idle speeds. If I close the Control Panel, it stays awake until I right click on the Control Panel icon in the system tray and close it from there, then the GPU goes back to sleep.
I'm going to try to feed this stuff back to Creative, but just thought I'd put it here too in case it helps someone in the same situation.