Yesterday I migrated our main file server to Windows Server 2012.
After setting up the permissions I noticed that Access-based enumeration was not working.
In this environment I’m not running DFS since there is only one File server.
I could not initially find the Access-based enumeration setting, or any good information on the web.
First you need to add the File And Storage Services role to the server and reboot the server.
Then go to File And Storage Services in System Manager.
Press Shares, select your shared folder, right-click and press Properties.
Under Settings you will find the Enable access-based enumeration-setting.
Enable it and Apply your changes.
If this helped you let me know! :)