If you are experiencing issue getting your Leap Motion Controller to work with Windows 10 please check the software version you are using.
In 2017, with the Windows 10 Fall Creators update, Microsoft made some changes to how they handle Imaging Devices, changing them to "Cameras." This resulted in a bug with our software.
To resolve this issue please update to version 3.2.1 of the Orion software which can be downloaded here. If you require an older version of the software, implement the fix outlined in this forum post.
If you are using a later version of firmware and still experiencing this issue, please see our troubleshooting guide here.