Local File Sharing : Modifying Advanced File Sharing Settings : Allowing Users to Browse Previous Versions of Files
  
Allowing Users to Browse Previous Versions of Files
By default, only administrators can browse and retrieve previous file versions. Use the following procedure to enable non-administrator users to browse and retrieve previous versions of files that they have permissions to view.
1 In the Configuration pane, go to the Network Shares page (Share > Shares), and then click Advanced.
2 Select the Allow users to browse previous versions of their files check box.
3 Click Finish.
To prevent users from browsing previous versions of their files:
1 In the Configuration pane, go to the Network Shares page (Share > Shares), and then click Advanced.
2 Clear the Allow users to browse previous versions of their files check box.
3 Click Finish.