To set, view, change, or remove special permissions for files and folders:
Click Start, click My Computer, and then locate the file or folder where you want to set special permissions.
Right-click the file or folder, click Properties, and then click the Security tab.
Click Advanced, and then use one of the following steps:
To set special permissions for an additional group or user, click Add, and then in Name box, type the name of the user or group, and then click OK.
To view or change special permissions for an existing group or user, click the name of the group or user, and then click Edit.
To remove an existing group or user and the special permissions, click the name of the group or user, and then click Remove. If the Remove button is unavailable, click to clear the Inherit from parent the permission entries that apply to child objects. Include these with entries explicitly defined here check box, click Remove, and then skip steps 4 and 5.
In the Permissions box, click to select or click to clear the appropriate Allow or Deny check box.
In the Apply onto box, click the folders or subfolders where you want these permissions applied.
To configure security so that the subfolders and files do not inherit these permissions, click to clear the Apply these permissions to objects and/or containers within this container only check box.
Click OK two times, and then click OK in the Advanced Security Settings for FolderName box, where FolderName is the folder name.