Sansa Clip freezing up

My Sansa Clip had frozen up halfway through the sync process and now cannot be read my my computer. I have Windows Media. How can I remedy this situation?

Unplug it, and then press the power button up and hold it for 15-20 seconds. Then go into the Clips settings menu and format it. Try again. If the same thing happens try switching the USB mode To MSC, and drag and drop your files.