Is your computer shared with people? If so, you will be concerned about the security of your personal files. If you are using the Windows XP operating system, then you can use Windows XP to provide some simple and efficient settings to maintain your file security. 1. Encrypting files and folders Encrypting files and folders can prevent unauthorized users from reading the files and folders. To encrypt a file or folder in Windows, open Windows Explorer, right-click on the file or folder you want to encrypt, select the Properties option, and click Advanced in the General tab. Button, select the "Encrypt content to protect data" checkbox (this operation is only available for NTFS file system). When encrypting a folder, the system will ask if you want to encrypt all files and subfolders in the folder at the same time. If you choose to do so, all files or subfolders currently and in the future will be encrypted. If you choose to encrypt only the folder, the files and subfolders currently in the folder will not be encrypted, but any files and subfolders added to the folder will be encrypted when they are added. When encrypting a single file, the system will also ask if you want to encrypt the folder containing it at the same time. If you choose to do this, all subsequent files and subfolders added to the folder will be automatically encrypted. Second, the shared drive or folder settings Windows XP can be easily set to "share" the drive or folder, and, if you do not want these shared drives or folders to be seen by remote computer users, just in Just add a "$" to the "share name" of the shared drive or folder, such as "C$". However, when the remote computer user knows the computer name of the machine and the user name and password of the administrator and server operator, then any remote computer user can access the computer through the local area network or the Internet. Undoubtedly, this also enables the shared drive. There is a security risk in the computer of the folder or folder. To secure the shared drive or folder, we should disable the server service. When the server service is disabled, all remote computers will not be able to connect to any drive or folder on that computer, but the administrator of this machine will still be able to access shared folders on other computers. To disable the server service, go to Control Panel - Performance and Maintenance - Administrative Tools, double-click the Services icon, and double-click the Server option in the Services window. In the dialog box shown in Figure 1, select the "Disabled" or "Manual" item in the "Startup Type" list. Third, the folder is set to a dedicated folder. By default, all folders in Windows XP are open, that is, all users on the machine can use them, which undoubtedly makes some users' important personal data face A serious threat. To this end, Windows XP has added a feature called "folder-specific", which means that in a NTFS file system, after a folder is set to a "private folder" by the user, the folder can only be This user is used, and other users can't use it after logging in to Windows XP, which is convenient for protecting important personal information. To make a folder dedicated, simply move the folder to the "x:\\Documents and Settings\\username\\" folder (where x is the partition where the Windows XP installation files are located), then right click on the folder , select the "Properties" option, and check the "Make this folder personal, so only I can access" checkbox in the "Share" tab. In this way, when other users want to enter this folder after logging in to Windows XP, they will be warned of "access denied". With the above security settings, you can rest easy and worry about the security of your personal files.