Problem with the cortex

the problem is as follows. after connecting the control unit to the computer, the robot executes the old program. moreover, it is impossible to reset this program. Help! Cortex EDR Robot

When you say it is impossible to reset, did you mean that you installed RobotC with all the drivers and can connect to the Cortex, but unable to download new program?

Also, do you have joystick or you connect directly to Cortex with USB cable?

Finally, did you try to install Cortex firmware utility and update firmware on the Cortex?