Learn more about the major hazards of Windows XP system shutdown in one second

Power-on and power-off is a must-have process for every user to use the computer. This process takes tens of seconds. Some users are too cumbersome, so “optimize” the computer to enable it to shut down quickly, but in fact it will cause the computer. Very harmful.

Hazard of Quick Shutdown

There is a quick shutdown method that is circulated on the Internet: Bring up the Task Manager, hold down the Ctrl key, and click Shut Down, which can be turned off in three seconds, and the speed is very fast. In addition, there are some fast shutdown software, such as SuperFast Shutdown, which can also be used to quickly shut down.

We all know that a series of operations are required when the system is shut down, including: closing windows, ending processes and services, saving data, and so on. And does the quick shutdown like the above save some steps, and will it harm the system?

Let’s take a look at the steps that the system will normally shut down:

1 Shutdown command informs the Windows subsystem CSRSS.EXE, CSRSS.EXE, after receiving the notification, it will do a data exchange with Winlogon.EXE, and then Winlogon.EXE will notify CSRSS.EXE to start the process of shutting down the system.

2CSRSS.EXE in turn queries the user processes that have the top-level window, letting these user processes exit.

3 Then start to terminate the system process.

The above three steps are the most time-consuming part of the entire Windows shutdown process. Most of the reasons for slow shutdown are caused by these three steps.

4Winlogon.EXE calls the NtShutdownSystem() function to command the system to perform subsequent sweeps and finally shuts down.

It seems that the Windows shutdown process is quite complicated. Using the Ctrl key to shut down or using some fast shutdown software does not go through the full four-step process, but often skips the first three steps and directly calls the NtShutdownSystem() function to shut down.

A lot of software writes data to memory at runtime and saves it to a file when it exits. If you do not go through the previous steps, it will lead to the program not exiting normally and losing data. This may cause some unexpected errors due to important data loss, which is harmful to the system.

Comparing the normal shutdown process of Windows XP system, the shutdown of one second is fast but it brings great harm. For your computer security, Xiaobian recommends that you try not to use Ctrl key to shut down or some Some fast shutdown software, after all, the security of the data is much more important than the saving time.