This happened before, and eventually it came back on.
But now it just totally gone.

whoever you are guest, please mind your language, I knew that if you put
the memory stick in, it will show, but it should also show when the
memory stick is not in, dirtbag.

If you have all that time typing all that stupid emoticons, may be you should think about what the problem is !!! This is a trouble shooting forum
not a leave it as it is forum. And if you are not supplying any answer,
please leave.

You should check in device manager to see if any yellow exclamation mark on your memory stick device driver.

please stop argue here

Man has Louis attracted a tweaker. I’ve never actually had it disappear. It always just shows up as a drive much like the floppy. Do you have other drives mapped to similar letters? I know I did have a problem once when I was using a thumb drive and it had some issues with the letter I had allocated to it. Just a thought.