The reason why Windows 7 system is better than XP security is an important reason for controlling the permissions of system files. You can't modify system files without authorization. Many users who upgrade from XP to Win7 are not used to this. They will encounter prompts such as "Access Denied" when they operate on system files. In the face of this situation, they tend to be overwhelmed. However, we only need to understand Win7. The system permissions principle can be easily solved.
usually need to manually modify the file system is where most of the hosts file, if we follow the practice of the times XP, the direct use Notepad to open C: hosts file to be modified if the \\Windows\\System32\\drivers\\etc , you will find the access denied prompt at the end of the save as shown below.
directly change the hosts file will not work
reason why this idea because we lack sufficient permissions to the current operation. Some people may say that I am already logged in as an administrator account. Why is it not enough? Yes, in the Win7 system, even if the account authority is a computer administrator, you still need to apply for elevated operation rights when it comes to core system files. For these problems, we need to do work the following steps:
First, find the file notepad.exe (Notepad) located in the Windows main folder, then right click and choose "Run as administrator", this The Notepad program that is launched will temporarily receive the highest privilege. Then through the file menu -- open, find the hosts file to make the necessary changes, save directly after the completion, in the process will not pop up the warning prompt to refuse access.
requires an administrator to modify the above method
belong to a one-time operation, that is, if the next but also to modify the hosts file, but also according to the above steps. Of course, you will search for other methods on the Internet, such as copying the hosts file to the desktop, and pasting it back after modification, but these methods are not convenient. If you want to do it once or for all, or if you have other non-text files that need to be modified, you can refer to the following method: permanently obtain all permissions for the file or folder.
Note that doing so will lose the rights-protected file system, may be the use of other programs in the background secretly modify files but you know, it is not recommended to use such practices, just write to tell you a You don't have to worry about the permissions issue every time.
to any folder Windows\\System32 a dll file as an example:
first step: Right you have to get permission of a file or folder, attributes - safety label; in the "group In the list below or the user name, select the currently logged in account name, usually the second line of Administrators (xxxx-PCAdministrators), where xxxx is your login user name, and then click the [Advanced] button at the bottom of the window.
Step Two: In the Advanced Security Settings window newly opened, the switch to the "owner" tab, click on the bottom [Edit] button. Then open a similar settings window, select Administrators (xxxx-PCAdministrators) under the "Change owner to" list, and then click [OK] (an additional confirmation window will pop up, click OK to return to the previous window) .
this time will find above the "current owner" has been changed from TrustedInstaller user name you logged into the system, and OK to return to the "Properties" window. After this step, we can manually modify the permissions of the login account, which was previously inoperable.
Step 3: Click the middle of the [Edit] to modify the permissions Administrators (xxxx-PCAdministrators), in which case, the list of permissions for each option are in a selectable state, the "full control" of the "Allow" Check the box and make sure that there will be a system security prompt. After
get the file Full Control permissions
completion of these operations, you will have all the authority to operate this file does not have permission prompt appears. If full control is no longer needed, repeat the third step above to remove the full control, modification, and write permission. After
read the above operation, you should understand, Win7 file management system is very strict, although our previous habits will have a little bit of trouble, but in return is a substantial security Ascension, I hope that users will try to modify the system files in the first way, so that they will not leave backdoors for other malware.