Windows 7 machines need a separate driver that we still need to develop in order for Bazecor to detect the Raise keyboard.
You can still use your Raise keyboard on your Windows 7 machine, but you simply cannot configure your keys since you won't be able to run Bazecor.
We are planning to release the driver in our future updates. We apologize for this inconvenience!
In the meantime, you can try installing Bazecor on a Windows 10 computer and customize your layouts from there.