Make a new user called something random.
Then log into that user, and copy their documents folder into the ROOT of the hard drive (so drag it straight into the Macintosh HD icon).
Then log back into your account, and highlight (don't double click) that folder. Press APPLE KEY + I
At the top of the window, there will be the icon for that folder. Click on it (once) and press APPLE KEY + C
Close that window, and then highlight (again don't double click) your Documents folder. Press APPLE KEY + I and then highlight the blank folder icon at the top and press APPLE KEY + V
Should work!!