Mpio HD-400 is stuck on loading screen windows doesnt recognize it

No solution yet. Throw to the seller for selling such crappy gadgets.

alotita,

I have an MPIO HD-200. Does Windows play the sound like you have something attached when you plug it in? Or does Windows not regognize it al all? Either way, I've had to play with mine after I've dropped it a couple of times. I charge the battery all the way, then just keep plugging and unplugging from the USB wire. The last time, it took 20+ times before Windows would recognize it.

how can I replace the hard drive?

That means you have a dead hard drive

Yeshai