Windows 7 is not officially supported by Opentrons or the OT-App, so we will not be able to guarantee that you can use a particular Windows 7 computer with our system. Likewise, we will have very limited ability to troubleshoot any issues that you face if you are using Windows 7.
However, some customers have been able to run our robot with Windows 7 using the following workaround:
1) Download and install the following version of the Smoothie driver.
2) Open the OT-App and attempt to connect with the robot.