Uninstall the newer version of MS VC++ (assume it is 2017 version) first. And then install the X1 RGB again this time it will install MS VC++ (2015 version). But be aware that if your Windows 10 is 1809 it may not work even it is now update to newer version (1.9.1). However, it work flawlessly with Windows 10 -1803.
The attached file is the captured picture of the problem I have with X1 RGB software on Windows 10 - 1809.