alienware17 R5 command center and AlienFX difficulties

I'm not the most tech savvy when it comes to the command center and ever since I needed to uninstall it for an update I haven't seem to get back the same command center back. I've seen every video telling me what to do and when I do it I seem to have the command center but not AlienFX. A warning seems to keep popping up saying "No AlienFX device detected" so I tried re-installing it multiple times to the point where I got two Alienware command center suite drives and one of them won't uninstall. This has been stressing me out for a while since I don't like not being able to change my theme back and I'd love it if someone other then some video from a company try to do it... please help...