If your Eikon 510 USB fingerprint scanner doesn't seem to work under Windows 10 (or any other Windows probably), you should consider this solution:
1. Go to Control Panel ->Device Manager
2. Find "TouchChip Fingerprint Coprocessor (WBF advanced mode)" and open it's properties
3. Go to power management tab.
4. Disable "Allow the computer to turn off this device to save power
You should see the blue light coming from the Eikon 510 device immediately. It's a signal that device is up&running. The actual driver you should use is probably already included in your Windows update drivers.
If this doesn't help, you should try to find this driver:
TouchChip Device Add-On for U.are.U SDK for Windows
TouchChip Fingerprint Coprocessor