In our computer's hard drive, there are some important data and secret files that we don't want others to see, especially in the office computers in the company, we always have some private or confidential documents. I don't want anyone to see it. Of course, as a C drive to install the operating system, there are some important system files that cannot be modified or moved by others. And sometimes, in order to protect our computer optical drive and increase its service life, we don't want others to use their own optical drive and other drives to read CDs, install programs and other operations. In previous versions of the Win XP operating system, if we wanted to implement the functions described above, we had to modify the registry or modify the system files to implement these functions, or use third-party software to add locks to our computer hard drives. Now we don't have to modify the cumbersome registry. The system provides us with the powerful function of "Group Policy". We can implement the limit drive and the hidden drive by setting the detailed parameters in "Group Policy". Moreover, it is very convenient to operate, and a user who has a basic knowledge of the computer can conveniently implement a function. Let's take a look at the operation process in detail. First, limit the use of the drive If we do not want others to use our drive, to view our more important and privacy files, or to modify the removal of system files, such as the installation of the system C drive or the drive letter with some important files, We can limit the use of an important drive by doing the following. 1. Click Start, click “Run” in the menu, the system will open a “Run” dialog box, enter “gpedit.msc” in this dialog box, click OK or press Enter. A "Group Policy" window will pop up automatically. 2. In the "Group Policy" window, we can see that there are two options "Computer Configuration" and "User Configuration" under the "Local Computer" policy in the left window. We select the "User Configuration" option here, and Open the "User Configuration", "Administrative Templates", "WINDOWS Components", "Windows Explorer" options. 3. At this point we will find that in the right window of the entire window, there are some options for us to choose, then Next, in the settings window on the right, select the "Prevent access to the drive from 'My Computer'" item, right click on this option, select "Properties", then "Prevent access from 'My Computer'" The properties of the drive "Settings window, there are three options, "Unconfigured" "Enabled" "Disabled", our system defaults to "Unconfigured" option, then we have to the parameters in this dialog Make settings. 4. Select "Enabled" to see it, below Now select the drop-down list of the drive. If you want to limit the use of a drive, just select the drive. For example, we want to limit the use of the C drive, check "Only limit drive C", you can. If you want to close all drives You can choose to "restrict all drives." Select the drive you want to restrict access to, and finally click OK or apply the button to complete the setup process. After the setup is complete, let's try to see if the drive we set is restricted. Setting a restricted drive, the system automatically pops up a prompt box that prohibits the use of the open drive. It can be seen that our settings are in effect. Even if you use the DIR command, the run dialog box and the network drive dialog box, you cannot view the directory of this drive. And the data. Second, hidden drive If we want to completely hide our driver, the method is also very simple, in order to facilitate everyone to fully understand, we also carry out a detailed introduction to the steps: 1, click to start Click "Run" in the menu, the system will open a "Run" dialog box, enter "gpedit.msc" in this dialog box, click OK or press Enter. The system will automatically pop up a "Group Policy" window 2. Select the "User Configuration" option and open the "User Configuration", "Administrative Templates", "WINDOWS Components", "Windows Explorer" options. 3. In the settings window to the right of "Windows Explorer" Select the "Hide these specified drives in my computer" item. In its properties, there are three choices. We select the "Enabled" item and then select the corresponding drive to be hidden in the drop-down list below. We went back to the WIN desktop and opened my computer. At this time, we will find that the drive letter we set is not visible. Here, the entire setup process is completed. With the above two simple settings, we can The private files and important data in the computer are stored with confidence. I don't have to worry about using our CD-ROM drive for others. Note that although we hide the drive, users can still access data from these drives and drives from other programs. For example, using Word's "Open" dialog box, you can open the drive we are hiding. At the same time, the disk management tools of WIN XP can also view and modify hidden drives. This is the same as limiting the use of the drive.