As in Windows XP, this folder is hidden, you first need to enable the display of hidden system directory.To do this, run Control Panel and locate the "Folder", or find the same item in the properties of any folder in the top context menu. "Next, you need to find the option "Show hidden files and folders" and set a check in front of him.After the operation carried out in the "Folder Options", click "Apply", then "OK".
Application Data folder is each account (user), set up in the operating system.Since the distribution of OS unpacked usually logical drive "C", the Application Data folder is located in the following path:
C: \ Documents and Settings \ user \ Application Data
Where "user" - username or account, for example, "Andrei".Application Data Administrator is on the way:

C: \ Documents and Settings \ Administrator \ Application Data
Common Application Data folder is located here:
C: \ Documents and Settings \ All Users \ Application Data
Enter the path of finding a directory you can go to anyfolder and set the path in the address bar at the top of the screen.After entering the path, you must press "Enter".
In Windows Vista and Windows 7, Microsoft has changed the architecture and the location of system folders, so, Application Data - just "plug" and a folder-pereadresat for applications written for Windows XP or earlier version of the operating system.
the folder to which you want to access, you need to right click and select the context menu "Properties".In the resulting window, select the "Security" tab and follow the chain of "Advanced - Owner - Change".Select the group "Administrators" or the account name and click "Apply", then "OK".For folders must also install check "Replace owner on subcontainers and objects."
To access the new folder in this architecture, you must pass on the way:
C: \ Users \ user \ AppData
Where "user" - username.