What is the harm to the computer by directly unplugging the power or cutting off the power

If you press the power switch on the case, it is equivalent to the normal shutdown of "start" and "off", because under the default settings of Windows, pressing this button is equivalent to a safe shutdown, and the current computer power supply adopts the ATX standard, so pressing the power button will not force the shutdown immediately, and you must press and hold the button for 4 seconds to forcibly shut down (to deal with the crash). If it is an old machine, using AT standard power supply, that button is equivalent to an ordinary power switch, and it will turn off when you press it, which has the following destructive properties:

1. Hurt the hard disk, this is the most important thing, because of the sudden forced shutdown, the hard disk head can not be reset, the next time you turn on the re-seeking, it is easy to damage the hard disk repeatedly;

2. Ongoing operations and unsaved data will be lost, sometimes causing the system to be abnormal;

3. It is easy to generate high-voltage arc inside the chassis equipment and burn the equipment.

The same is true if you press the switch directly on the electrical outlet or unplug it.

It is easy to damage the display, and it will damage the CMOS battery if it goes down often, and the hard disk will also reduce its life.

It's a little less harmful than when the power is suddenly cut off, and the harm is great, and sometimes it affects the shutdown program of Windows, so that it can't shut down normally in the future.

Directly turn off the power to the machine, in fact, is a misunderstanding, someone has done a test, directly turn off the power as long as the hard disk does not work will not hurt, before it was said that the power is harmful to directly refer to the hard disk, if the hard disk is reading and writing data when the power suddenly loses power or directly press the power key to shut down, at this time the hard disk head is very close to the platter and is in a state of high-speed operation, it is easy to make the head hit on the platter, resulting in hard disk damage and data loss, this is a terrible consequence, So many people summarize that they can't shut down directly, in fact, the current hard disk manufacturers have also taken a lot of protection technology to avoid this situation, and restarting directly after an occasional power failure or crash will not bring much harm, as long as it is not a power outage when formatting the hard disk, hard disk partition, upgrading the motherboard BIOS or restoring the image with ghost, there will not be much problem, but for the sake of insurance, it is not recommended to turn off the power directly, or it is better to shut down the computer in the normal shutdown order! There are a lot of things that will hurt, but the most important thing is the hard disk, the hard disk dies very quickly, not to mention the reduction of the life of the hard disk, it will also leave the wrong file under the system disk, which causes the machine to run slowly or even wrong, sometimes the wrong file can not even be deleted, it affects the system, and it is possible to burn the power supply or motherboard, this is a random occurrence, because the current may increase instantaneously, burn the motherboard or other hardware, if you often do this within a few months, your hard disk or CPU and other hardware circuits are not broken, Abnormal shutdown can be said to be a hard drive killer.

It is advisable not to use it all the time, or preferably not at all.

There is a danger, it depends on the quality of your machine, or the system will lose files (just reinstall it); Hardware is burned, such as your motherboard and power supply, etc., generally these two are broken first, followed by memory. Of course, if your hard drive is in the trash, it may also break first. In short, don't try the law by yourself, don't be afraid of 10,000, just in case, you can burn some money if you have money, hehe! ~~

1. Hurt the hard disk, this is the most important thing, because of the sudden forced shutdown, the hard disk head can not be reset, the next time you turn on the re-seeking, it is easy to damage the hard disk repeatedly;

2. Ongoing operations and unsaved data will be lost, sometimes causing the system to be abnormal;

3. It is easy to generate high-voltage arc inside the chassis equipment and burn the equipment.

These three points are the most important!

Unplugging the computer when it is turned on may cause damage to the computer's hardware and software. In terms of hardware, the computer is directly powered off, which may damage the power supply of the computer, and the sudden power failure when the power supply is working may produce a large reverse electromotive force, which will have an impact on the components of the power supply and cause damage to the power supply. It may also damage the hard disk, especially the mechanical hard disk, the hard disk will rotate at high speed when working, and suddenly lose power, and the high-speed rotating head may damage the disk surface, which has a certain impact on the head and platter of the hard disk.

In the case of SSDs, a sudden power loss can result in data loss or even damage to some storage units. In addition, it may also have an impact on the COMS of the motherboard and the audio ** card on the motherboard, especially the graphics card due to its own power filter capacitance, which is very likely to cause instantaneous discharge leakage of the capacitor and damage to the BIOS of the graphics card. The power filter capacitors of the motherboard can also cause leakage due to instantaneous discharge, causing damage to the entire system.

If it is hardware damage, it basically needs to be replaced and repaired, which usually needs to be solved by professional technicians after sales. In terms of software, direct power failure may lead to the loss of unsaved files, and the corruption or loss of various system files that are running, resulting in the system not being able to start normally or not being able to use normally after startup. This situation can usually be solved by repairing the system files or reinstalling the system.

There is a certain harm in restarting when the power is off, but once in a while, it is not a big problem, because it is unavoidable, but if it is often done like this, it will be very harmful to the computer. The main aspects are as follows:

First, the hard disk is not good, the current hard disk speed is as high as 7200 rpm, suddenly power failure, the hard disk suddenly stops, the hard disk causes great harm to the hard disk, and the long-term life of the hard disk will be shortened.

2. Generally speaking, a sudden power failure will not cause the loss of computer data, but if there is a virus in the computer, the sudden power failure will cause the system files to be lost, and in serious cases, the system will not be able to start.

3. Others are generally not good for the motherboard, but they will not cause great harm.

So in general, try not to directly power off and restart the computer, you can force the computer to hang up by pressing and holding the power button of the computer for about 10s.

Unplugging the computer while it is running will cause the following consequences:

1. The data that the user is running cannot be saved, resulting in data loss;

3. The running system update task cannot be completed, which may cause the computer to fail to boot.

4. It may cause the loss of boot files, resulting in the inability to boot.

Directly unplugging your computer monitor can cause damage to your monitor, and here are five answers:

1.Sudden power interruption: Directly unplugging the power supply will cause a sudden interruption in the power supply, which may cause an undesirable voltage shock to the circuitry and internal components of the display.

2.Voltage spikes: Voltage spikes can occur at the moment the plug is unplugged, and this voltage change can put too much stress on the display's electronic components and circuitry, resulting in burnout.

3.Data loss: Monitors usually have power management features, and unplugging them directly will result in data loss, such as the display's settings, brightness, contrast, and other parameters may be reset.

4.System instability: A sudden power outage can lead to instability of the computer system, which can lead to a series of problems, such as data loss, program crashes, etc., which can cause damage to both the hard copy and the software.

5.Potential risk of damage: Frequent direct unplugging of the power plug can cause damage to the power plug itself and the contact point between the plug and the outlet, which in turn can affect the quality of the connection.

Summary: Unplugging a computer monitor can cause the monitor to burn out, resulting in data loss, key loss, system instability, and plug damage. Therefore, it is advisable to turn off the monitor before disconnecting it from the power supply and unplug it in the correct way to avoid potential damage.

Unplugging the power supply directly when the computer is running will cause special damage to the computer's hardware (computer's power supply, hard disk, motherboard), system, etc.

Unplugging the computer while it is running will cause the following consequences:

1. The data that the user is running cannot be returned.

Can't do that! The computer will be damaged!!

The power supply of the memory master version graphics card is burned!