Why won t my computer shut down automatically? It s just that it turned off and didn t respond

It is possible that the system files are missing and the system is reinstalled to take a look.

The computer suddenly shows that there is no signal input, and then automatically shuts down, this situation generally has the following reasons:

1. Due to the heat dissipation problem of the machine, the CPU fan does not work properly, and the overall temperature of the chassis is too high, so you can replace the CPU fan and open the cover plate of the chassis to solve the heat dissipation problem of the machine.

2. It may be that the voltage is not very stable, when the voltage is too high or drops below the minimum working voltage of the host power supply, the host will also protect and shut down.

3. The quality of the socket or power socket is poor, the contact is poor, most of the power sockets on the market are of poor quality, the internal contacts are manually soldered, and acid flux is often used, which is easy to lead to the oxidation of the solder joint in the future use and cause the circuit break or leakage between the live wire and the neutral line.

The laptop automatically shuts down, generally due to the following reasons:

1 The computer system is poisoned or infected with malware.

2 CPU Fan Bad CPU Temperature Too High, Overheating Protection.

3 The power supply is bad, or new hardware has been added, and the power supply is insufficient.

4 The graphics card or graphics card fan is broken.

5 The motherboard is broken, and the motherboard core is overheating.

Solution: 1 Check whether the antivirus software has killed the virus, you can determine whether it is caused by the computer system poisoning or malware, if there is a virus, it is recommended to use a combination of antivirus software to kill the virus, or if it doesn't work, go to the maintenance center to solve it.

2 Test the temperature of each hardware on the computer, open the case, see if the CPU fan and graphics card fan rotate normally, find out the problem, and go to the maintenance center to replace the CPU fan. Different computer models have different CPUs**, which need to be detected to know**.

3 If the computer has a discrete graphics card and the power supply is not enough, you can only go to the repair center to change to a higher power power supply.

4 Shut down, touch the south bridge, north bridge chip, graphics card chip of the motherboard with your hands, if it is very hot, it is likely that the motherboard is damaged and needs to be repaired immediately.

There must be a problem with the power supply or power supply.

Guess why. 1. Battery problem.

2. Problems with the main control chip of the motherboard power supply.

3. The South Bridge Problem.

If you have installed a hardware external device, remove it and check whether there is an automatic shutdown, which may be caused by hardware compatibility issues. If there is an automatic shutdown situation when running a specific software, it may be a compatibility problem between the software and the system, you can run the software in compatibility mode to try, and try to reinstall the driver and the system. If the device cannot be turned on immediately after the automatic shutdown, it may be that the overheating triggers the protection mechanism, which may cause the automatic shutdown situation.

You can go to the service center to clean the ash and test the specific situation.

1. Press and hold the power off button and don't let go. Be sure not to let go of your hand during some processes, generally the computer will shut down after a few seconds, and then let go of the teasing or renting hand.

2. If you can still open the Task Manager, select Task Manager Shutdown-Close.

3. Click to start running, enter shutdown-s and click on Sure Mountain Zhaoding, and then there will be a forced shutdown.

4. The system does not respond, which may be the reason for too many running programs. Check out the Task Manager to see which running programs are messing around and choosing to end.

5. It is best to optimize and clean up the system for the computer, sometimes it may be that there are too many junk files that affect the process.

6. Use anti-virus software to do a check-and-kill, sometimes it may also be caused by a computer virus.

1.There are many reasons why a computer cannot be turned off, and here are the following situations and how to deal with them.

1) The automatic shutdown program in the system file is defective. In order to determine whether this is the cause, the following experiments can be performed. In Start Running, enter the command: , exitwindows" and see if it shuts down properly. If you are using a win98 system, please check the integrity of the system files and patch the files in "Start Program Attachments System Tools System Information Tools System File Checker". If a different system (ME 2000 XP) is used, file patching can also be done in the corresponding project.

If patching the file still doesn't solve the problem, you can only reinstall the system. And run "rundll32

exitwindows" can not shut down normally, it may be that some system programs in the system are defective, but the solution is still to repair the system or reinstall the system;

2) Viruses and some defective applications or system tasks may cause shutdown failure. First of all, check for viruses and close all applications before shutting down the computer. Because some applications are loaded at system startup, you can use the command in the Startup menu (in Start Running:

msconfig"), in order to see if there are any files that affect the shutdown (of course, they will not take effect until they are restarted);

3) Peripherals and drivers are not compatible well and cannot respond to rapid shutdown. You can enter the command "msconfig" in Start Running, select "Advanced" in the "General" tab, and "Disable Rapid Shutdown" in the window that opens.

If you suspect that the peripherals are faulty, you can also uninstall the peripherals one by one to check them so that you can find the affected peripherals.

2.If the computer fails to shut down and is stuck, press and hold the power button to force it to shut down.