For research use only. Not for use in diagnostic procedures. Answer
The Windows 7 64-bit device driver for the Eksigent USB detector board is not signed by Microsoft. In order to ensure trouble-free operation of the Eksigent control software the user must disable the Driver Signature Enforcement feature each time the computer is started. This can be done using the following procedure:
During the initial boot stage and prior to the Starting Windows display, press F8 for the system boot options menu.
Select Disable Driver Signature Enforcement and then press Enter.