Problem recognizing Sansa on Windows 7

Hello I attempt to plug in my Sansa e280 8 gb and get error MP3 player not recognized also get a panel asking if I want to reformat the disc. Is there something I need to set in the player to have it recognized on my computer? I have download the latest firmware upgrade but I can not “finish,” the install because my computer does not recognize the Sanas? Hope you can help.

Try switching your player to MSC Mode (Settings > System Settings > USB Mode).