Why does my laptop automatically shut down when plugged in while powered on

Reason for automatic shutdown of the computer:

1.Poor heat dissipation, power failure, and motherboard failure may cause the computer to shut down automatically or restart repeatedly. (Reboot is an important feature: sometimes it shuts down, sometimes it restarts).

2.When the core components of the system are damaged, the running computer may automatically shut down. Kingsoft security experts are here to provide you with special killing tools and system repair tools, please click Fast**.

3.In the running software, there are some software with the option to shut down when the task is completed, and the user may not have noticed and turned these switches on.

These software are more common, such as Thunderbolt, Express, anti-virus software, BT**, **** and so on. In the software settings, there is an action that automatically shuts down after completing a certain task. But generally the default setting is off.

The purpose is to automatically shut down the computer when a task is completed when a task is running a more time-consuming operation.

4.Other hardware reasons.

The solution to the automatic shutdown of the computer:

1.First of all, check whether there is a problem with the hardware, focusing on the power supply of the motherboard, CPU fan, host power supply, and power socket.

2.Check if there are some applications that have enabled shutdown after the task is completed. This is evident from this. The feature is that before shutting down, there will always be a program that has been run, and a dialog box will generally pop up to remind you to shut down.

3.Resolve virus Trojans and repair system damaged files. With the latest version of Kingsoft Antivirus 2011, you can complete virus removal and system configuration repair at one time. "

Follow my method to solve the problem, and ask me if it doesn't work.

When the power is turned on, it will automatically shut down when plugged in, the problem may lie in the battery, or the motherboard circuit switching is faulty, you need to go to the after-sales service to test the external device and power supply. Before that, you can reinstall the system to troubleshoot the software problem, and the steps to reinstall the system are as follows:

3.When you start configuring, follow the beginner's tutorial. First, environmental testing.

4.After the environment is detected, there will be a reinstallation type, one is pure reinstallation, that is, a new system is installed, the contents of the C disk will be updated, and the other disks will be fine. The other is a reserved reload.

That is, after reinstallation, the original data and document settings are retained. Choose according to your situation. If the data backup is complete or the data is not important, you can choose the pure type.

5.After the backup is completed, click Next, and then you can rest for a while [It's a bit long] Later**, the installation and so on will be completed. At the end of the day, it's just a matter of choosing the next step.

url] if it is invalid. It is recommended that you go to the service station to contact a professional engineer for your inspection, and the following is the query link of the service station.

Lenovo Repair Site Inquiry:

url] thinkpad service station query:

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The reasons for the automatic shutdown of the laptop without plugging in the power supply are generally as follows:

1. The battery is depleted.

2. The battery is aging or has a memory effect, and it cannot continue to last when the power is not exhausted.

3. The battery management software of the computer is abnormal, so that the computer obtains the wrong power information and causes the shutdown.

4. The battery management parameters of the computer are unreasonable, and the critical point of residual power is reached and the computer is shut down.

5. Protective shutdown caused by non-battery factors such as high computer temperature, abnormal software, and virus infection.

1. Open Power Options in the Control Panel and select Change Plan Settings in the corresponding options.

2. Select Change advanced power settings.

3. Select [Battery] to see if [Low Battery Level] is set to 50% power and [Low Power Operation] is set to auto power off.

Note: If the above operations cannot solve your problem, it is recommended that you perform battery calibration: first fully charge the battery, then restart the boot and continuously click F10 to enter the BIOS, then unplug the power adapter, and use the battery alone to power until the laptop automatically shuts down, and then fully charges it again.

The laptop can't be completely shut down:

First of all, there are indeed some virus Trojan rogue software, which creates malicious drivers (sys files) when invading the computer, and the problem of system compatibility is not the focus of the virus author's consideration when designing the virus program, and compatibility problems often occur. Use Kingsoft Antivirus to quickly scan and kill to rule out virus problems that cause shutdown failures. Generally, it only needs to be quickly killed, and it can be solved according to the prompts after 3 to 5 minutes.

2.If you still have shutdown failures, use Task Manager to check which program is running and see which program failed to shut down and caused your computer to shut down. Then contact the developer of the relevant program to find the compatibility issue, and generally speaking, it takes a long time to confirm whether the computer will not shut down and a certain application software.

3.Try to end the program that cannot be closed by itself in Task Manager (press Ctrl+Alt+del), find the program that is still running, and try to end the process.

I can find out how to turn on the laptop when it is plugged in: you can remove the battery first to confirm whether it is related to the battery. Another important reason is that there is a problem with the internal cooling system of the laptop, and the CPU temperature is too high, which will cause the automatic protection to shut down.

Automatic shutdown troubleshooting method: 1. There may be a problem with the BIOS settings, enter the BIOS to restore the default settings or take out the battery of the motherboard, reverse buckle and discharge, and wait for 5 minutes to reverse install it. Purpose:

It is the default value of the BIOS settings to restore the default value, and the phenomenon of automatic reboot or shutdown of the BIOS cooling preset is excluded. 2. If the computer shuts down automatically when using a certain application software, the automatic shutdown failure may be caused by this program software, and the program software can be uninstalled. 3. Then check the power supply, the power supply quality is poor, aging or the power is too small, which can not meet the power supply needs of the computer accessories, and the high-power and high-quality power supply can be replaced.

4. Then use the elimination method to check the memory, graphics card, CPU, CPU fan, motherboard, etc. 5. Check the memory, the memory quality is not up to standard, poor heat dissipation, overclocking, mixing and inserting of different brands of memory and the CAS value setting is too low, etc., which can cause the computer to shut down automatically, and the memory parameters can be adjusted accordingly in the BIOS. 6. Check the motherboard, the motherboard aging, capacitor failure or pulp, the motherboard power pins, the motherboard and the chassis backplane short circuit can cause automatic shutdown, you can take the motherboard out of the chassis to check or test, then check whether the CPU fan rotation and the CPU temperature is normal, and then check whether the bottom of the CPU fan heatsink is dry, if it is dry, clean the silicone on the CPU fan, and then recoat the good silicone.

If the fan is not normal, replace the CPU fan. 7. Cleaning method: It is a method to eliminate faults by cleaning the dust of the parts in the computer host.

Dust is one of the factors that can also cause computer automatic shutdown failures, dust can cause parts aging, pin oxidation, poor contact and short circuit and other failures. For these faults caused by dust, it is generally more effective to use the cleaning method. 8. The power supply system is unstable, which can also cause the occurrence of automatic shutdown faults, and a UPS backup power supply with voltage stabilization function can be considered.

The battery is used up, the battery should have been used for a long time, the laptop battery life is low, and sometimes it will run out of power after a while.

Hello! This may be hibernating, or your battery is too low, if you confirm that your battery level is okay and you don't want to turn off automatically, then you can cancel the sleep or sleep in the corona solution

I don't know if you're referring to a black screen going to hibernation, or if it's really an automatic shutdown. If it really shuts down automatically, it should be out of power. However, if you want to go to sleep, you can click on the small battery icon at the bottom right of the screen, select "More power options", and then click "Change plan settings" to set how long the computer will be in a leisure state when it is not operating.

Hello, there is a problem with the computer sleep time setting in the power options. You just change your sleep time to never.

Right-click the power icon in the lower right corner and select Power Options to enter the power settings.

I have the same problem as you, the computer still has 80 power.