The computer can t be turned on or turned off, and the computer can t be turned on or turned off

Dear users, hello.

There are many reasons why your computer crashes:

Poor heat dissipation] The monitor, power supply, and CPU generate a lot of heat during operation, so it is important to maintain good ventilation, if the monitor overheats, it will lead to color, image distortion and even shorten the life of the monitor. Working too long can also cause the power supply or monitor to dissipate heat poorly, causing the computer to crash. CPU heat dissipation is an important issue related to the stability of computer operation, and it is also the "hardest hit area" where heat dissipation failures occur.

Improper movement] Excessive vibration during the movement of the computer often loosens the internal components of the machine, resulting in poor contact and computer crash, so severe vibration should be avoided when moving the computer.

Dust Killer] Too much dust inside the machine can also cause crashes. If the floppy drive head or optical drive laser head is contaminated with too much dust, it will lead to reading and writing errors, and in serious cases, it will cause the computer to crash.

Device mismatch] If the main frequency of the motherboard and the CPU clock do not match, if the external frequency is set too high when the old motherboard is overclocked, the stability of the operation may not be guaranteed, resulting in frequent crashes.

Software and hardware incompatibility] 3D software and some special software may not be able to start or even install normally on some microcomputers, which may have problems with software and hardware compatibility.

Memory module failure] is mainly caused by loose memory modules, virtual soldering, or the quality of the memory chip itself. Memory module contact faults should be eliminated on a case-by-case basis, and if there is a problem with the quality of the memory module, the memory needs to be replaced to resolve the issue.

Hard disk failure] is mainly due to the aging of the hard disk or due to improper use of bad sectors, bad sectors. In this way, the machine is prone to crash while it is running. You can use special tools and software to troubleshoot, if the damage is serious, you can only replace the hard disk.

In addition, for motherboards that do not support UDMA 66 100, you should pay attention to the setting of the hard disk operation mode in CMOS.

CPU Overclocking] Overclocking increases the frequency at which the CPU works, and at the same time, it can also make its performance unstable. Overclocking makes this contradiction even more prominent, exacerbating the fact that the CPU can access data in memory faster than the memory and hard disk can exchange data, exacerbating the situation where the required data cannot be found in memory or virtual memory, which can lead to "abnormal errors". The solution, of course, is relatively simple, which is to return the CPU to a normal frequency.

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It is advisable to find someone to redo the system.

The computer can't turn on and turn off the machine, what's going on, hello dear, 1First plug in the power supply to see if the power supply of the computer is normal, that is, listen to the fan sound and see if the power button is normal and bright, if the normal light fan is running normally, the power supply of the computer is normal, if the power supply button is not bright, you should consider whether to change the power supply to try. 2.

If the power supply is okay, then see if there is a problem with the monitor, and try to change to a normal monitor. 3.If the display is normal, then consider whether it is caused by the static electricity of the computer can not turn on, first unplug the power supply, and then press and hold the power on button for more than 10 seconds, press it twice, try to see if it is good, if it is not good, then look at the following method.

4.Disassemble the case, take the memory module off, take something to wipe the dust off the gold finger, and put it back in. This time press Power on and see if your computer can boot up normally.

5.If the computer still can't start normally, you should consider whether the computer's memory module is broken and the computer can't turn on, if there are two memory modules on the computer, then unplug one first, if it is not good, then press the one you just unplugged, and unplug the other one. If it boots normally, it means that the unplugged memory module cannot be used on this computer.

6.If the computer has a memory module, you need to find a good memory module to replace the original one, and then the computer restarts to try, if it doesn't work, try to replace two more. 7.

If it doesn't work, we have to consider whether there is a problem with the motherboard, we first find the CMOS zero jumper on the motherboard, return the CMOS settings to the default state, and then start it to see. If you can't find the clear jumper, remove the battery from the motherboard and install it, and the effect of clearing is the same. Try rebooting again.

8.If you can't do it, you have to consider taking the computer to the computer store for repair and inspection. If it is a notebook, it is best to take it to a computer store and have it checked by a professional.

Main steps: 1. See if the wiring is loose. 2. Clean up the memory module and reinstall it.

1. There are many reasons why the computer cannot be shut down, and the following introduces several situations and solutions.

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 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. 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.

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.

2. If the computer cannot be shut down and is stuck, press and hold the power button to force the shutdown.

Here are the reasons and solutions why your computer won't turn off:

Turn off Fast Startup.

1.As we all know, the boot speed of the win7 system is not as fast as that of win10, this is because the win10 system has the [fast start] function. By default, this feature is turned on in Win10 and most users have a shutdown exception caused by this.

2.We can turn it off. First, right-click on the start icon or press the shortcut keys [Win + X] keys and select [Power Options].

3.Find [Additional Power Settings] on the right side of the window that opens, and then click to enter.

4.In the left menu bar of the power options, find [Select the function of the power button] and turn it on.

5.Here we can see that in [Shutdown Settings], the first item [Enable Fast Startup (Recommended)] is turned on. We click on [Change settings that are not currently available] above, then uncheck "Enable Quickstart" and save the settings.

After passing the above settings, the computer can be shut down smoothly.

Answer Hello Friend, 1When the laptop can't be shut down, if you use forced shutdown, it can't solve the problem, even if the problem is solved this time, but next time it may still be like this.

2.Generally speaking, the laptop cannot be turned off because of a virus intrusion in the middle of the laptop. This virus is a more destructive virus. Generally, the shutdown of the computer is affected by the system file registry.

3.When the sound file in the middle of the computer is damaged, the computer cannot be shut down.

4.Another possibility is that there is a problem with the advanced power management features on the computer, which is also the cause of the laptop shutdown failure.

5.If the laptop cannot be shut down normally due to an intrusion virus, we can do it in the antivirus software on the computer and fix it. Today's antivirus software is not only free, but also very powerful.

When we do this, the computer is usually back to normal.

6.If you are not sure if the computer is caused by the damage of the sound file, we can check whether the sound file is corrupted through the control panel. If it is corrupted, then we can help to restore the sound file by restoring the sound file in the backup.

The problem of the laptop not shutting down properly can also be solved.

7.Open the Control Panel, select Advanced Power Management, and select Enable Power Management. The purpose of this is to check if there is a problem with the advanced power management.

If there's a problem with advanced power management, then we're going to have to ask a professional to help us solve it.

Question: It can't be turned off or turned on now.

You can't open the control panel.

Answer: You can use the key combination of [win] + [r] to open the run, and enter [cmd] to open the command prompt; Then enter the command of [shutdown s], then click enter, the computer will shut down within 1 minute;

You don't have to be in a hurry, just wait patiently for a while, you really can't turn it off, and then press and hold the power button for 10 seconds to force a shutdown, your computer is not used much, it may be damp, turn on the machine for a while and let it evaporate the moisture, it should be fine, if it doesn't work, reinstall the system, the hardware is generally not bad, don't rush to the repair station, it's either a waste of time or a waste of money.

1) First soft and then hard, reinstall the operating system, do not install software, patches, drivers, etc., and see if there is still a problem with switching on and off? If you don't install drivers, patches, and software step by step, and find something that isn't suitable, don't install it.

Please note: If you restore the system or reinstall it, when installing drivers, patches, software and other things, be sure not to install the things that affect your accident this time, otherwise it will be restored or reinstalled in vain.

2) In terms of hardware, such as whether there is a problem with the hard disk, memory, etc., whether the temperature of the CPU and other hardware is high, if it is caused by hardware problems, it is recommended to overhaul it.

Also, it may be that there is a problem with the disk, please fix it (fix each disk or only c).

Built-in disk repair method:

The specific steps are as follows: select the drive letter in my computer, right-click to select the properties, select "Tools Start Checking" in the pop-up drive properties window, and select "Automatically repair file system errors" and "Scan and recover bad sectors", and then click Start, the scanning time will vary depending on the disk capacity and scanning options (after doing it according to the above method, a box will pop up, the point is, repair after automatic shutdown at boot, win7 select the disk check button according to the plan).

Bad sectors on the hard drive will lead to corruption or loss of computer system files, computer failure to boot or freeze. Hard disk bad sectors can be repaired using NDD Disk Utility or Scandisk.

If the fault persists, please restore the system or reinstall it (it is still not possible to format the hard disk and repartition and reinstall it, if it doesn't work, you will have to replace the hard disk, or overhaul it).

What should I do if my computer can't be turned off?

You can't turn off the machine for a long time, press and hold the boot, don't let go, force the shutdown, don't wait for the long press the F8 key to enter the last correct configuration, see if you can enter the system, and then you shut down directly and try at boot. If that doesn't work, reinstall the system.

Press and hold the power button to force it to shut down, or unplug the power and then turn it on, you can use PE to turn on the power.

Hello lz,This kind of problem should be a problem with the motherboard inside the host.,Plug in the power and it will automatically power on.,And then it can't be turned off.。 You have to find after-sales service, or replace it with a new motherboard.

It is estimated that it is a power supply problem, or a motherboard short circuit problem, you need to go to the maintenance department to find the cause, and use the rule of elimination to find the cause. Make your own judgment and don't blindly follow the advice of maintenance personnel.

How is it possible to turn off the phone, just unplug the power supply, pick the battery of the notebook, and then turn it on.