You need to click start and then click the user in the right side frame, then right click each folder from the explorer window that pops up, and under properties, location should be a tab. Choose move, and then browse to a location you want that folder to be. If you are just changing drive letters, but retaining the file structure, you can highlight the drive letter and change it to the drive you want, and it will create the folders at the new location. I did this when I had a small SSD drive I was booting from and needed to save space.