Windows XP 中Use Access Control to Restrict Who Can Use Files
The NTFS file system available in Windows XP offers several security advantages not available in previous versions of Windows without NTFS. One such advantage is access control. You can restrict who has access to data on your computer, or on the network, using access control lists in Windows XP on a drive formatted to use NTFS. The access control features allow you to restrict access to a specific user, a computer, or a group of users. Setting Permissions on Files and Folders
You set permissions to define the type of access granted to a user or group. For example, you can grant Read and Write permissions to the entire Finance group for the file payroll.dat . When you set up permissions, you specify the level of access for groups and users. For example, you can let one user read the contents of a file, let another user make changes to the file, and prevent all other users from accessing the file. You can set similar permissions on printers so that certain users can configure the printer and other users can only print from it. To change permissions on a file or folder, you must be the owner of that file or folder, or you must have permission to make such changes. Top of page Group Permissions
For best results, assign permissions to groups rather than to users, this saves you from maintaining access control for each user; assign Full control , if appropriate, rather than individual permissions. Use Deny to exclude a subset of a group which has Allowed permissions, or to exclude one special permission when you have already granted full control to a user or group. The type of permissions you can grant depend on the type of object. For example, the permissions for a file are different from those for a registry key. However, some permissions are common, including: ? Read permissions Windows">Windows
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