Whether the power supply light is normal for a period of time after the Windows 8 portable computer shuts down

With the popularity of Windows 8, a notebook that installs Windows 8 after a shutdown action, the power supply, and so on, will be lit for 10 seconds or even minutes after the screen is closed. This behavior is actually due to the mixed shutdown characteristics of Windows 8 and is not a fault.

　　Reason Analysis:

On Windows 8 Systems, Microsoft has introduced a new hybrid shutdown model to achieve faster switching speeds.

The following is the approximate process for a hybrid shutdown:

1, click "Shutdown".

2. Windows broadcasts Run application shutdown information so that applications can save data and settings. The application can also request some extra time to end its current work.

3, close the screen.

4. Windows closes a user session for each logged-on user.

5, System session sleep, and power off.

Let's take a look at the traditional mode shutdown process:

1, click "Shutdown".

2. Windows broadcasts Run application shutdown information so that applications can save data and settings. The application can also require some extra time to end its current work.

3. Windows closes a user session for each logged-on user.

4. Windows sends shutdown information to the service, the notification has started shutdown, and then the service is closed. If the service is not responding, the system forces the shutdown.

5. Windows broadcasts information to the device and signals the device to close it.

6, Windows shuts down the system session (also known as "Session 0").

7. Windows refreshes the system drive pending data to ensure full storage.

8, Windows through the ACPI-oriented system to send signals to the computer power.

Visible, Windows 8 closes only the user session and does not completely shut down the computer as it did before. At this point, Windows no longer waits and ends the system service and closes the session, but lets it hibernate.

Essentially, the Windows 8 shutdown involves logging off all users, and then the system goes into hibernation in two processes. So when Windows 8 turns on a hybrid shutdown, the computer closes the screen after the application shuts down, while the user session is closed and dormant in the background, and the entire computer is powered down after hibernation. The traditional mode is to turn off the screen at the same time in step 8th by powering down the entire computer system. It is because the difference between the mixing shutdown and the traditional mode shutdown in the screen time that "the screen is turned off, the power led does not go off immediately" phenomenon.

So in the shutdown, the number of open programs, the running of the background process and services, the number of logged-in users, hard disk I/O performance, etc., will affect the speed of computer shutdown. This is also for different computers, including the same model, the same configuration computer, but the software configuration is not the same, each time the shutdown action, shutdown screen shutdown, the light on the length of time is not the reason.

　　Solution:

If you understand the process of the Windows 8 switch, you will understand that the phenomenon is not a failure, but rather a feature of the Windows 8 hybrid shutdown. However, you can turn off the Quick launch, given the feeling of using it.

　The steps are as follows:

1, press the "Windows logo key +r" key combination, type "powercfg.cpl" and click OK. As shown in the figure:

2, in the presence of the "Power Options" interface, click "Select the power button function." As shown in the figure:

3, we want to set the "Start fast start" option, if the current is gray is not optional, click the above "change currently unavailable settings." As shown in the figure:

4. At this point, this option becomes operable. Clear the check box in front of start Quick Launch, and then click Save Changes. As shown in the figure:

Note: Because the desktop and so on can not directly control the power of the screen, so the above phenomenon exists only in the notebook computer.