How much do you know about the security mode of the operating system?

How much do you know about the security mode of the operating system? Although the computer already has it, and most of the time it is really on the computer, but even so, do you know how familiar you are with the computer? I don't know if you have heard of the security mode of the operating system? The most often heard is that when you have a virus in your computer, if the virus uses no anti-virus software, you can't kill it. At this time, a computer expert must tell you: Enter the safe mode and manually delete the virus program. This article describes what is the security mode of the operating system? The security mode is a system mode provided by the operating system. As the name implies, it is the operating mode under the premise of security. Generally, when we just start the machine, click F8 to enter the safe mode. The working mode of the safe mode is to disable all non-system startup items, so that users can detect and repair system errors. So the security mode is generally a system mode that is used when there is a problem with normal startup. So, when you encounter problems, can you solve it by entering safe mode? First, if the system fails due to improper installation of some software, if the uninstall operation cannot be performed in the normal startup mode, you can enter the safe mode and uninstall the software. Secondly, if the system fails to start because some values ​​of the registry are modified, you can also enter the safe mode, because the registry problem can be automatically fixed after the security mode is successfully started. Finally, there is a situation that everyone usually pays little attention to, that is, when defragmenting, it is best to do it in safe mode, because in the process of defragmentation, it is best not to run any other programs. If defragmentation is performed under normal startup, the system will load some automatically started programs, which is not conducive to the finishing process. In short, problems and system failures that are normally encountered during normal startup can be resolved and handled in safe mode.