Lot of Application Data shows up in user's Home Folder

[Guest Richard]

We noticed there are lot of "Application Data" folder showing up in our

user's Home folder. When I double-click on the "Application Data" folder, it

will shows the user's name as "F:\home\john" and displaying all of my user's

files. When I double-click on another "Application Data" folder it will show

the next user's files. When I rename the "Application Data" folder to the

user's name it will change the username to all of the "Application Data"

folder. Could you tell me how to fix it?