i1Display Pro Won't Connect on PC - Check For DisplayCal From Argyll

If you have an Argyll product (i.e., DisplayCal) installed on your computer and the i1Diplay Pro fails to connect to i1Profiler, the problem is likely to be caused by the Argyll device driver. Argyll's device driver will not allow the i1Display Pro to connect to our software.  To resolve this issue:

1. Right click on the “Eye-One Display 3 (Argyll)” device driver in Control Panel > Device Manager and select “Uninstall” to remove the existing driver. If it appears, check the box to "Deleted the driver software for this device".
2. You'll then need to uninstall the Argyll program and the reboot the computer.
3. Delete any Display Cal and/or Argyll directories left behind (C:\Program Files (x86) and/or C:\ProgramData) and then reboot the computer.
4. Plug in the i1Display Pro and it should properly load the driver as a "USB Input Device" under "Human Interface Devices".
5. Open i1Profiler and test.