Sansa Clip Wont Register on my computer

@miikerman wrote:

You also might need to go into the Device manager on your computer and de-athorize/uninstall the Clip drive, and then start from scratch again–sometimes this does the trick.

Error Code 43 is USB driver issue so yes, this would be a good idea to un-install the device (in Device Manager) having problems, unplugging, rebooting the computer and then plugging it back in to see if Windows will find/correct/install the appropriate driver that works.

Switching to MSC mode may bypass the situation, but if DRM-crippled files are being used, you need to get MTP mode working in order to use the player.