Full uninstall of the "Gaming Center"

DomoSapien: so I spoke with support, it's possible that there are some residual files from WGC leftover that are causing the installer to redirect to WGC.

Try restarting your PC, then launching the EXE again.

If that doesn't do the trick, a fesh install with CCleaner should do the trick. If you're not familiar with the process, our Customer Support Teamcan definitely help you out with that.