What does this error mean, and how can I resolve it. It happened after in installed a memorex usb jump drive, then tried to connect a usb Canon scanner. That is when I got the error when plugging in the scanner. Note that nothing else was plugged into a usb port, I had already removed the jump drive. This is the error message. USB device you are trying to connect to the virtual machine is being used by another process. Wait 5-10 seconds, then try to connect the device again. If this does not help, find the application that blocked up the device and disconnect it manually.