I want to get the gpx audio player usb device off

If you were using Windows Media Player to transfer your files then your done. The device itself leaves no foot print on your pc. WMP will retain the drivers for your device but they won't do anything unless your device is plugged back in.

Before you give up, please give me some information, I'll see if I can help. What operating system are you using? What program are you using to transfer music to your mp3 player? If you are using Windows Media player what version do you have? In WMP there is a help tab at the top, click on it. There is an "About" selection in the drop down box, click on it. This will tell you what version you are using.