Windows 8.1 and 10 have some anomalies for pairing Bluetooth keyboards with highly secure pairing codes like the Kinesis Freestyle2 Blue, which requires a 8-digit number. If you encounter this problem please follow the instructions below for your specific OS.
There is a bug in Windows 8.1 that will cycle through passcodes quickly and may not provide ample time to enter in the passcode before another one is generated. If this occurs, try having another person read you the passcode while you very quickly enter it on your keyboard.
A pop-up may appear which mistakenly asks the user to provide a passcode, however, there is a low contrast link barely visible below the passcode field stating “Or try entering a passcode on it”. Click on this link to generate a passcode.
If you still have questions or issues in pairing your keyboard with your computer, phone, or tablet, please contact Kinesis Technical Support tech support or 800-454-6374 for further assistance.