Hi,

 

I had a similar problem, and this worked for me...

 

On your desk top (if you have it located there) right click on "My Computer" and then select "Manage".  Under "Storage" Click on "Disk Management", on the right hand side of the screen there should be a couple of drives listed, one of them being your "Memory Key". Right click on your "Memory Key" and then select "Change Drive Letter and Paths...".  A window will pop up showing your Memory Key, select that and then click on "Change".  A new window will open, select your new drive letter from the drop down on the right hand side of the screen and click on OK.  You will probably get a warning when you do this.  Just click on OK and you should be all set after that.