My PC can not find the Angel Reef controller

[pabaloval]

Hello, I want to change my PDE but, my PC can not find the Angel reef controller.
I can do?
Before I could program it, my pc

Thanks.

[binder]

Are you talking about inside Arduino where you upload the code to the controller?
Have you tried plugging in the USB cable to another USB port? What about restarting the computer?