Is it normal for the power light to be on for a while after the Win8 notebook is turned off?

In daily life, after turning off the laptop, we often find that the power indicator in the laptop is still bright for tens of seconds or a few minutes. This phenomenon is actually caused by the hybrid shutdown feature of Win8. Is not a fault, so how to solve this phenomenon? The following small series introduces you to the solution that the power supply and the signal light are always on after Win8 is turned off.

Cause Analysis:

On Windows 8 systems, in order to get faster switching speeds, Microsoft introduced a new hybrid shutdown mode.

The following is the general flow of a hybrid shutdown:

1. Click “Shutdown”.

2. The Windows broadcast runs the application shutdown information, allowing the application to save data and settings. The application can also ask for some extra time to end its current work.

3. Close the screen.

4. Windows closes the user session for each logged in user.

5, the system session sleeps, and the power is turned off.

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

1. Click “Shutdown”.

2. The Windows broadcast runs the application shutdown information, allowing the application to save data and settings. The application can also ask for some extra time to end its current work.

3. Windows closes the user session for each logged in user.

4, Windows sends a shutdown message to the service, the notification has started to shut down, and then shut down the service. If the service does not respond, the system will force the shutdown.

5, Windows broadcasts information to the device, indicating that the device is shut down.

6. Windows closes the system session (also known as “session 0”).

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

8. Windows sends a signal to the system through the ACPI interface to power off the computer.

It can be seen that Win8 only closes the user session and does not completely shut down the computer as before. At this point, Windows no longer waits and ends the system service and closes the session, but puts it to sleep.

Essentially, Win8 shutdown includes the process of logging out all users and then the system goes to sleep. Therefore, when Win8 turns on the hybrid shutdown, the computer will close the screen after the application is closed, and at the same time, the user session is closed and closed in the background, and the entire computer is powered off after the sleep. The traditional mode is to turn off the screen at the same time by powering down the entire computer system in step 8. It is because of the difference between the time when the hybrid shutdown and the traditional mode is turned off to turn off the screen, and the phenomenon that the power indicator does not turn off immediately after the screen is turned off.

So when shutting down, how many programs are open, how many background processes and services are running, how many users are logged in, and the I/O performance of the hard disk will affect the speed at which the computer shuts down. This is also the reason why the indicator lights are different for different computers, including the same model and the same configuration computer, but the software configuration is different, each time the shutdown action is performed and the shutdown screen is turned off.

Solution:

If you understand the process of Win8 switch, you understand that this phenomenon is not a malfunction, but is caused by the characteristics of Win8 hybrid shutdown. However, considering the use of feelings, you can also turn off "quick start".

The steps are as follows:

1. Press “Windows Logo Key+R”, type “powercfg.cpl” and click “OK”. As shown in FIG:

2, the occurrence of & ldquo; Power Options & rdquo; interface, click & ldquo; select power button & rdquo ;. As shown:

3, we want to set is & ldquo; Start Quick Start & rdquo; option, if the current is grayed, click the top of the & ldquo; change the settings currently unavailable ”. As shown in FIG:

4, at this time, this option becomes operable. Clear the checkbox in front of “Start Quick Launch" and click “Save Changes” As shown in FIG:

Win8 the upper small series to introduce off lights and remains lit power supply solutions. Users who don't know yet, try the above steps to see.