Explain in detail the security mode under Windows 7

security mode is a special mode in the Windows operating system. In the safe mode, users can easily fix some errors of the system and achieve twice the result with half the effort. Sometimes the machine has a problem, you can enter the safe mode to kill the virus, and sometimes it can solve the problem very effectively. How to enter.

When starting the computer, before the system enters the Windows splash screen, press the F8 key (or hold down the Ctrl key while starting the computer), the operating system multi-mode boot menu will appear, just select "SafeMode", you can boot your computer into safe mode.

1. Delete stubborn files

When we delete some files or clear the contents of the Recycle Bin under Windows, the system sometimes prompts the words "A certain file is in use and cannot be deleted". However, these files are not in use and you can try to restart your computer and enter safe mode at startup. After entering safe mode, Windows automatically releases control of these files and you can delete them.

2, "Safe Mode" Restore

If the computer does not start properly, you can use "Safe Mode" or other boot options to start the computer, press F8 when the computer starts, start at Select the security mode in the mode menu, and then perform the system restoration as follows:

Click "Start" → "All Programs" → "Accessories" → "System Tools" → "System Restore" to open the System Restore Wizard. Then select the "Restore my computer to an earlier time" option, click the "Next" button, click on the date displayed in bold on the calendar to select the system restore point, click the "Next" button to perform a system restore.

3, killing the virus

Now more than one day, the anti-virus software is updated every day. However, anti-virus under Windows is a bit unreliable because they are very likely to cross-infect. And some anti-virus programs can't run under DOS. At this time, of course, we can also boot the system to safe mode, so that Windows only loads the most basic drivers, so that killing the virus is more thorough and cleaner.

4. Unlock Group Policy Locking

In fact, Group Policy restrictions in Windows are implemented by loading the registry specific key values, which are not loaded in safe mode. Press and hold the F8 key after rebooting, in the multi-boot menu window that opens, select "Safe Mode with Command Prompt". After entering the desktop, enter "C:\\Windows\\System32\\XXX.exe (the program you started)" at the command prompt of the startup, start the console, and then remove the restriction according to the above operation, and finally restart the normal login system. Can be unlocked.

Note: Many restrictions on Group Policy can't be effective in Safe Mode. If you encounter a restriction that cannot be lifted, you may want to go to find a solution.

5, repair system failure

If Windows is not stable or can not start properly, do not focus on the system at this time, try to restart the computer and switch to safe mode to start After restarting the computer, has the system been restored? If the system is faulty due to a problem with the registry, this method is very effective, because Windows can automatically repair the registry problem when it starts in safe mode. After starting Windows successfully in mode, it can usually be started in normal mode (Normal).

6, recovery system settings

If the user is installing new software or changing some settings, the system will not start properly, you need to enter safe mode to resolve, if it is If the new software is installed, please uninstall the software in safe mode. If some settings are changed, such as the display resolution setting is beyond the display range of the display, resulting in a black screen, you can change it back after entering safe mode. Put a screen saver with a password in the "Startup" menu. If you forget the password, the computer will not operate properly and you can enter the safe mode change.

7, pull out a malicious self-starting program or service

If the computer has some inexplicable mistakes, such as not being able to access the network, according to the general idea, you can not find the problem, you can start Take a look at the secure mode with a network connection. If you can do it here, it means that some self-starting programs or services affect the normal connection of the network.

8. Detecting incompatible hardware

XP uses a digital signature driver mode, and the detection of various hardware is stricter than before, so some devices may be in normal state. Can not be driven to use. If you find that XP does not recognize the hardware in normal mode, you can press F8 at startup and then enter safe mode to detect new hardware in safe mode.

9, uninstall the incorrect driver

General driver, if you do not apply your hardware, you can uninstall it through XP driver restore. But the graphics card and hard drive IDE driver, if installed wrong, it is possible to enter the GUI interface to crash; some motherboards ULTRADMA patch is also the same, because Windows is to read the memory and disk page files to adjust the computer state at any time, so the hard drive one The system will crash if there is a problem. What should I do now?

In some cases, disabling the administrator account may cause maintenance difficulties. For example, in a domain environment, when the secure channel used to establish a connection fails for some reason, if there is no other local administrator account, the computer must be restarted in secure mode to fix the problem that caused the connection state to be interrupted.

If you attempt to re-enable a disabled administrator account and the current administrator password does not meet the password requirements, you will not be able to re-enable it. In this case, the optional member of the administrator group must set the password for the administrator account through the Local Users and Groups user interface.