What to do if you press the power button to shut down the computer and make the computer unusable

The main problems are as follows:

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1.The auto-shutdown procedure in the system files is defective. In order to determine whether this is the cause, the following experiments can be performed.

Enter the command "rundll32 ,exitwindows" in Start Run to see if it shuts down properly. If the shutdown can be performed under this command, it means that the automatic shutdown program may have some kind of defect.

If patching the file still doesn't solve the problem, you can only reinstall the system. If you can't shut down normally by running "rundll32, exitwindows", it may be that some system programs in the system are defective, but the solution is still to patch the system or reinstall the system. ALT+F4 patent, copy is shameful of human content].

2.Viruses and defective applications or system tasks may cause shutdown failures. First of all, check for viruses and close all applications before shutting down the computer.

Since some applications are loaded at system startup, you can subtract the loaded programs one by one from the Startup menu (enter the command: msconfig in Start Run) to see if there are any files that affect the shutdown (of course, it will not take effect until after a restart).

3.Peripherals and drivers are not compatible well and do not respond to rapid shutdown. You can enter the command in Start Run:

msconfig", 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.

4.If you set up a sound file to be used when Windows is shut down, it can also cause the shutdown to fail when the file is corrupted. Please select the "Exit Windows" item in the "Control Panel Sound Events" and set the sound name to "None".

If you can shut down normally after this process, it means that this is indeed the cause and you can reinstall the sound file for use.

5.WinXP can't shut down automatically after installation, if you rule out the above reasons, it may be that the power options in its control panel are not set correctly, please check your settings to ensure that ACPI and APM can work normally. There are also cases where the APM (Advanced Power Management) and Win XP in the motherboard system BIOS are not fully compatible (especially AMI BIOS), so they cannot automatically shut down.

Selecting Shutdown turns into a reboot of the system, in which case you can only manually shut down (press the power switch for 4 seconds and then let go, if it is less than 4 seconds, it will be invalid). The fundamental solution to the problem is to upgrade the system BIOS of the motherboard to a new version.

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Install a system, brother, or you check the connection behind the motherboard to see if there is a problem there, and then check the boot button. Try more, major system issues!

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Operating system issues! Reinstall!

"The reason why the computer cannot be shut down normally;

1.In most cases, it is a virus Trojan that causes the computer to fail to shut down normally, and the more typical virus is the kidnapping Trojan, which is a new type of highly destructive Trojan, which is different from the traditional virus, it is by kidnapping the system file registry to achieve boot startup, resulting in the computer shutdown button is missing.

The sound file is corrupted and the computer cannot be shut down.

Incorrect settings will cause the computer to fail to shut down properly.

4.The Advanced Power Management (APM) feature on your computer can also cause shutdown, freeze, or black screen issues.

The computer shutdown does not solve the problem:

One. The computer was damaged by a Trojan virus, and the registry information was maliciously altered. The solution is as follows:

Step 1: Enter the main interface and enter [Kill Trojan].

Step 2 After installation, click on "Kill Trojan" to use the full scan function.

Two. The following describes how to fix the problem caused by a user mistakenly modifying the computer shutdown configuration file.

1.Start "Run", enter "regedit" in the "Run" dialog box, click "OK" to find the following: hkey-local- machine software Microsoft Windows CurrentVersion Policies, click on the "System" folder, and then double-click the "ShutdownWithoutLogon" item on the right.

2., "Start" "Run", enter "Run" in the "Run" dialog box, and then click the "OK" button. In the Group Policy window, double-click Administrative Templates, Taskbar, and Start Menu, and then double-click the Remove and block access Shutdown command on the right.

In the Remove and Block Access to Shutdown Command Properties window, click the Settings tab, select Disabled, and then click the OK button.

Three. The first thing you can do is determine if the "Quit Windows" sound file is corrupted - open the "Control Panel", open "Sound" and cancel the "Quit Windows" sound. If Windows shuts down normally, the problem is caused by quitting the sound file, and you can fix this by restoring the sound file from a backup or by reinstalling the program that provided the sound file, or by defining "quit Windows" as silent.

Four. When you boot up the computer, you can enter the CMOS settings page, focusing on checking whether the CPU external frequency, power management, virus detection, IRQ interrupt opening and closing, disk boot sequence and other options are set correctly. You can refer to your motherboard's manual for specific settings, which has very detailed settings instructions, if you really don't know about its settings, it is recommended that you directly restore the factory default settings.

Five. To check if the Advanced Power Management (APM) feature can also cause the shutdown freeze or black screen issue, open the Device Manager and open the System Devices. In Advanced Power Management, remove the Enable Power Management selection.

If the computer shuts down gracefully, the cause of the problem may be APM. "

Press and hold the power off button until the computer shuts down and then releases.

Generally, there is no need to shut down like this.

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Press and hold the power button for more than 4 seconds before it will automatically turn off.

Summary. Remove the battery on the back of the laptop, connect the computer with only the power adapter, and try to turn it on, if the boot is normal, then it is caused by poor battery contact or battery failure. 2. Only use the battery, do not connect the power adapter, if the boot is normal, then it should be caused by a problem with the power adapter or a short circuit in the power interface of the notebook.

3. Unplug the power cord, remove the battery, and press and hold the power button for 30 seconds without letting go. Try to boot up, if the boot is normal, then it is only caused by the abnormal BIOS of the motherboard. 4. Unplug the power cord, remove the battery, open the back cover of the memory, plug in and unplug the memory, wipe the gold finger part with an eraser, and plug it back in (don't reverse it) 5. If the above operations cannot solve the problem, it is recommended that the notebook be sent to the maintenance center for testing.

The computer was originally turned on, but I accidentally pressed the on/off button on the computer, and it won't turn on?

Remove the battery on the back of the laptop, connect the computer with only the power adapter, and try to turn it on, if the boot is normal, then it is caused by poor battery contact or battery failure. 2. Only use the battery, do not connect the power supply to the pants and the device is filial piety, if the boot is normal, then it should be caused by a problem with the power adapter or a short circuit in the power interface of the notebook. 3. Unplug the power cord, remove the battery, and press and hold the power button for 30 seconds without letting go.

Try to boot up, if the boot is normal, then it is only caused by the abnormal BIOS of the motherboard. 4. Unplug the power cord, remove the battery, open the back cover of the memory, plug in and unplug the memory, wipe the gold finger part with an eraser, and plug it back in (don't reverse it) 5. If the above operations cannot solve the problem, it is recommended that the notebook be sent to the maintenance center for testing. Clever lead.

It's a computer, not a laptop.

Click Shutdown in the start menu, and press the power button for more than 10 seconds to force it to shut down.