Analysis and application of 8 kinds of Windows security modes

window| people who often use computers safely may have heard that when a computer fails, Windows provides a platform called "Safe Mode" where users can solve a lot of problems-whether it's hardware (driver) or software. But will you use this safe mode? Today we are going to show you what it really is.

First knowledge of Safe mode

To enter Safe mode, as long as the start of the Non-stop press F8, the menu will appear, and then use the keyboard up and down the cursor keys to choose to enter a different boot mode. The Options menu includes the following:

1. Safe Mode

Use only basic files and drivers. such as mouse (except USB serial mouse), monitor, keyboard, hard disk, basic video, default system services, and so on, but no network connection.

If you do not successfully start your computer in Safe mode, you may need to use the Recovery Console feature to repair your system.

2. Safe Mode with network connection

Increased network connectivity based on normal security mode. However, some network programs may not work properly, such as MSN, and many of the applications will not automatically load, such as firewalls, anti-virus software. So in this mode must not forget to manually load, otherwise malicious programs and so may invade the process of repairing your computer.

3. Safe Mode with command line prompt

Starts only with basic files and drivers, and after logging in, a command prompt is displayed on the screen, not the Windows graphical interface.

Description: In this mode, if you accidentally close the command Prompt window, the screen will be completely black. Can press the key combination Ctrl+alt+del, bring up "Task Manager", click "New Task", and then enter "C:\WINDOWS\explorer.exe" after "Run" in the pop-up dialog box, can start the Windows XP graphical interface immediately, The interface is exactly the same as in the three security modes described above. If you enter "C:\windows\system32\cmd", you can open the Command Prompt window again. In fact, this is the way to start a command prompt window in other safe modes even when it is starting normally.

4. Enable Startup log

Starts in normal Safe mode and logs all drivers and services that are loaded (or not loaded) by the system into a text file. This file, called Ntbtlog.txt, is located in the%windir% (default c:\windows\) directory. The startup log is useful for determining the exact cause of system startup problems.

5. Enable VGA Mode

Started with the basic VGA driver. This mode is useful when you have installed a new video card driver that makes Windows not start properly. In fact, it always uses the basic video driver, regardless of the form of Safe mode startup. Therefore, in these modes, the resolution of the screen is 640x480 and cannot be changed. However, you can reinstall the driver.

6. Last Known Good Configuration

Started using the registry information and drivers that were saved when Windows was last shut down. Any changes made since the last successful startup will be lost. Therefore, the last known Good configuration is used only if the configuration is not correct (primarily software configuration). However, it does not resolve problems caused by corrupted or missing drivers or files.

7. Directory Service Recovery Model

This is for the server operating system and is used only to recover the SYSVOL directory and Active Directory directory service on the domain controller.

8. Debug mode

At startup, debug information is sent to another computer through a serial cable.

If you are or have already used Remote Installation services to install Windows on your computer, you can see additional options related to restoring or recovering the system using Remote Installation Services.