Click on “Device Manager” on the left hand side. On the right hand side,
double click on “Ports (COM & LPT)”.
Under ports, if "TI CC2540 USB CDC Serial Port (COM#)" is displayed,
that means the driver is installed successfully. Remember the “COM #”
because you will need to configure the multimeterBLE software.
Note: If an unknown device is displayed, try to install the driver manually
following the steps below.
How to install the driver manually
Right click the unknown device icon, in the drop down menu, click
"Update Driver Software...".