If you are faced with a problem such as an involuntary computer shutdown, then you need to know the reasons for what is happening, which will tell you what to do next in order to get rid of such sudden PC shutdowns. We would like to immediately note that both a computer and a laptop can turn off on their own, and most importantly, this does not always mean some serious problems with the hardware; perhaps it is simply the effect of a virus. But let's talk about everything in order.
6 reasons why your computer turns off on its own
- Virus. One of the most common causes is a virus that causes the computer to shut down on its own without your instructions. To do this, you should scan your entire PC for viruses.
- Overheating of computer components. Carry this out, as a layer of dust can cause overheating, and also pay attention to the coolers, they should all spin quickly.
- There is a fault in the power supply. Another common cause is a breakdown of the power supply; it can burn out due to voltage surges and excessive load from components.
- Fault in random access memory. Characterized by this type The problem is that before turning off the computer begins to freeze and all functions slow down. To exclude RAM from the list of reasons for turning off the computer, we recommend inserting another one in its place, and also contacting specialists service center.
- Breaking motherboard. Spontaneous shutdown of the PC will be caused either by a crack or chip on the motherboard, or by a burnt-out capacitor. In general, this happens due to impacts on the system unit or its fall, or because the motherboard has already “outlived its useful life.” Of course, we cannot rule out marriage, but it is quite rare. Again, you won’t be able to independently determine whether the motherboard is to blame for this without using special equipment.
- Poor contact. It is quite simple to identify and fix this breakdown - check the tightness of all cords, starting with the outlet, because there may be a problem with the surge protector. All plugs must be tightly inserted, both outside the system unit and inside it.
Many owners personal computers are faced with a situation where the computer, without any reason visible reasons suddenly stops working. If this happens often enough, there is a serious problem that needs to be corrected as soon as possible. After all, frequent shutdowns of the computer during operation can cause interruptions in the operation of the hard drive or even its failure. In addition, when a PC turns off spontaneously, there is always a risk of losing important data, which in some cases may be more valuable than the computer itself.
In order to find out what needs to be done to eliminate the above-mentioned malfunction, you must first calculate the source of its occurrence. There may be several reasons for turning off your computer on your own. The most common ones are listed below, along with how to fix them.
Power problems
The most “banal” reason for a PC turning off is a power outage. The computer may also turn off due to a faulty network cable, extension cord or even an outlet.
To eliminate this problem, you will have to check all the wires connecting the outlet and your computer for contact. This can be done using special tool(you will have to resort to the help of a specialist) or simply by replacing them with guaranteed working ones. It also doesn't hurt to inspect the electrical outlet itself. And if power outages occur due to poor wiring in the house or low-quality electricity supply, it is best to immediately buy a source uninterruptible power supply.
Power supply failure
If the computer turns off on its own at various times, regardless of the tasks performed on it, and sometimes stops working right while the operating system is loading, then there is most likely a problem with the power supply. The power supply may stop functioning properly due to voltage fluctuations, Low quality manufacturing, or due to wear and tear. The average service life of most power supplies is 3-6 years, then they begin to cause trouble for owners.
There are two options for solving the problem with the power supply: take it for repair or simply throw it away and buy a new one. It makes sense to resort to the first option only when the power supply was purchased recently or when it belongs to the top price category. In all other cases, it is much easier to replace the power supply.
CPU overload
If the computer has not very powerful components, then excessive load can also cause it to shut down. This can be observed especially often when running programs and applications that require system resources.
To avoid unexpected PC shutdowns, before installing any program, make sure that your system configuration matches minimum requirements applications. If the overload is caused big amount processes on your computer, you can disable some processes through the task manager, leaving only the most necessary ones.
Dust in the system unit
When a lot of dust accumulates inside the system unit, this leads to overheating of the components, which in turn causes a forced shutdown of the computer.
To avoid overheating, your PC needs to be cleaned regularly. system unit from dust. Particular attention should be paid to the cooler and radiator grille of the processor, as well as the connectors for connecting the video card, RAM and hard drive.
Old thermal paste
The thermal paste between the processor and the heatsink, which serves to dissipate heat, can dry out over time and lose its heat-conducting properties. As a result, the processor overheats, which in turn leads to spontaneous shutdown of the PC.
In view of this, it would be advisable to monitor temperature conditions processor, and, if necessary, replace thermal paste. It is more convenient and easier to combine this procedure with cleaning the system unit from dust. To control the processor temperature, you can use a special program, for example SpeedFan or AIDA64.
Poor air circulation inside the PC
The cause of overheating and spontaneous shutdown of the computer can also be insufficient air circulation in the system unit. Particularly relevant this problem in summer, in rooms not equipped with air conditioning.
In this case, installing additional fans inside the PC case will help to avoid overheating. You can read more about computer cooling systems and how and where best to install fans in the article at this link: it.ros-kit.ru/help/computers/sistemy-okhlazhdeniya-kompyutera. Also, to avoid overheating, do not install the system unit in a closed place, such as a desk drawer.
Virus infection
Sometimes the computer shuts down due to certain viruses in the system. If, in addition to your PC shutting down on its own, you begin to notice other alarming symptoms, such as frequent freezes, slow program operation, and pop-up windows, then most likely the problem is viruses.
If your computer is infected with viruses, then the installed antivirus is clearly not coping with its tasks. In this case, it is better to use specialized utilities, such as Kaspersky or Dr.Web, to clean up viruses. Download free program Dr.Web CureIt can be found at this link: freedrweb.com/download+cureit+free/?lng=ru. You can download the Kaspersky Virus Removal Tool for free at this address: kaspersky.ru/virus-scanner, and from this article you will learn how to perform a system recovery if the OS does not boot due to viruses.
Faulty motherboard or RAM
When the computer turns off under active load, for example while playing a game or using resource-intensive applications, but there is no overheating, then the reason for this may be a malfunction of the RAM or motherboard.
Just in case, you can try to disassemble the PC and clean with a brush all the contacts on the RAM sticks, as well as the used connectors on the motherboard. If this does not help, then you will have to take your computer to a repair shop, since this problem cannot be fixed without the help of professionals.
If you are unable to fix the problem yourself, you can contact a service center to have your computer repaired.
In addition, our company provides tablet repair services. Our service center specialists will get your tablet up and running in a timely manner.
Still have questions? - We will answer them for FREE
In this article we will look at the main reasons why a computer may turn off by itself. Have you been working on a program or playing a game, and then, out of the blue, your computer just turns off? And even if this is not the first time this happens, don’t be alarmed. Let's deal with the problem that has arisen.
Poor cooling of parts
The first reason why this can happen spontaneous shutdown computer - this is poor cooling of parts. In order for them to work stably and not overheat too much during operation, active or passive cooling is installed for them.
Make sure that the system unit is not covered on all sides: by furniture, cabinet partitions, etc. It should stand where there is free access to air. Otherwise, it can often overheat, because the warm air simply has nowhere to go.
Next, remove the side cover of the system unit and turn on the computer. See if all the fans are in working order: for the video card, processor, on the case. If the fan on the case does not work, then for better cooling of the parts, you can simply leave the side cover of the system unit open. If the fan does not work for a particular element, then it is better to replace it with a new one.
Also, pay attention to the dust inside the system unit. If a considerable amount of it has accumulated there, then it is better to clean the parts. After all, dust interferes with the dissipation of heat when heating the elements, which causes them to overheat and cause the computer to spontaneously shut down.
With the system unit turned off and de-energized, turn all the fans with your finger. They should not spin with difficulty or make strange sounds. Otherwise, lubricate them with sewing machine oil.
Look also at the state of the thermal paste - it is a viscous substance and is also involved in the process of heat transfer. If it is already dry, it needs to be replaced.
To prevent your computer from shutting down due to overheating again in the future, install a program to monitor the processor temperature CrystalDiskInfo. In this case, the temperature will be displayed in the tray.
Voltage drops
The second reason why a computer can turn off on its own is voltage fluctuations in the network. Moreover, you may not even know about it. For example, you are working or playing at the computer, at this time, one of your relatives turned on the electric kettle in the kitchen, or the refrigerator started working. As a result, a power surge occurs and the computer shuts down safely.
If everything is exactly like this for you - the computer turns off if any other electrical appliance is connected to the network, then it would not be a bad idea to purchase and connect an uninterruptible power supply.
Swollen capacitors
The third reason is swollen capacitors. Open the system unit and look at all the capacitors installed there. Their top should be smooth. If the cap of the capacitor is swollen, or there are streaks on it, then it may cause the computer to turn off spontaneously.
In this case, you need to buy suitable capacitors and resolder them. If you are not strong in electronics, then it is better to find a knowledgeable person or take the system unit to a service center.
Weak power supply
The fourth reason is a weak power supply. If you run any game or program that requires large computational costs, then the computer may simply not have enough power from the power supply, as a result, it will turn off.
Problems with the video card
It is responsible for all graphics on the computer, that is, displaying images, videos, and games on the monitor. And if it fails, the computer may also turn off.
Very often, users are interested in the question: why does the computer turn off during the game. The reason may be a power supply that cannot withstand the load, or a video card that cannot handle graphics. Elements in the system unit may also overheat.
Failed hard drive
It is with hard computer reads all the information necessary for work. If you hear a strange sound while working at your computer, then it is better to think about purchasing a new hard drive. Over time, they appear on the media bad sectors, and when the read head hits them, the computer may turn off spontaneously.
Driver conflicts
The seventh problem is conflict installed drivers. Drivers connect the hardware and software of a computer. And if they are poorly compatible, this can lead to the computer shutting down. Try reinstalling the conflicting drivers: and using special programs: , and others.
Viruses
And the last reason I want to describe is viruses. The fact is that they, like programs and games, can greatly overload the system, as a result, the computer will simply turn off. The simplest solution is to check your computer using antivirus program, then delete any infected files found. If it helps, then great, if not, move on.
Try doing a last known known configuration. To do this, restart your computer, and while the operating system is loading, press F8 frequently. In the window that appears, use the arrows to select the item "Load Last Known Good Configuration". If the problem does not go away, move on.
If you cannot use your computer for 5 minutes, then it turns off, we will try to remove viruses in safe mode. Press F8 again when rebooting, then select « Safe mode» . If the computer boots and works normally, great. Run an antivirus program and remove all viruses found. The best option for this is the AVP Tool.
There are enough ways to help you. Follow the link and read a detailed article about this.
I hope now you can figure out the problem: why the computer turns off by itself. If you know any other reasons, or have any questions, write in the comments.
Rate this article:Hello friends. What should I do if my computer turns off by itself? A PC or laptop should not randomly turn off for no reason. And if such a problem occurs, something is obviously wrong. Either the software part of the device or the hardware may be faulty. Below we will consider common reasons that can cause unauthorized shutdown of computer devices. At the end of the article I will tell you two very interesting cases on this topic.
Let's start with the reasons at the Windows level.
1. Task Scheduler
Be sure to check the Task Scheduler Library first
and delete tasks that may be associated with the computer shutting down. IN Carefully review all scheduler tasks.For example, in addition to the usual task that shuts down the PC, this can be done by a bat file launched by the scheduler, and so on.
2. Drivers
Windows – universal operating system for a huge number of computer components. Their support is implemented through drivers, which may malfunction due to various programmers' mistakes when writing them, problems within Windows itself, or driver conflicts. More often, such problems manifest themselves in the form blue screen death (BSOD), but sometimes they can manifest themselves in the form of random shutdown of the computer without crashing into BSOD. Knowing or at least guessing which device driver is causing the problem, you can try. If the driver is installed from an EXE installer, it is preferable to obtain one. Without knowing the specific causative driver, you can try resetting the binding to components using the standard Windows Sysprep utility.
3. Viruses
Viruses can cause an arbitrary computer shutdown - both their direct participation and the consequences they cause in the form of destruction of important system files. Here you need to destroy the viruses and carry out (you can even do this). As a last resort, reinstall Windows.
4. Third party programs
If your computer turns off on its own, it may be due to third-party programs running. The likelihood of one program conflicting with another causing this to happen is very low. Usually programs just crash, and serious ones like hypervisors get BSOD. But you can also come across the following picture: erroneously configured or forgotten schedulers inside programs such as media players or various kinds of organizers, working in the background, shut down the PC (the same Download Master can do this).
Naturally, believing that in this way they follow the user's instructions.
Reveal third party programs that are causing the problem, testing will help computer device in mode. By the way, the task to turn off the computer at a certain time or under certain circumstances can also hang out in the standard Windows scheduler (this is written about at the beginning of the article).
- Note: whether the reason for the random shutdown of the computer is software rather than hardware can be determined by testing its operation as part of launching from any build of a Live disk for system specialists. One of the best Live disks based on WinPE are AdminPE and .
What hardware reasons can cause the computer to turn off on its own?
5. Heavy loads on a weak computer
If resource-intensive tasks such as modern games or programs for working with 3D are launched on a weak PC or laptop, the device may not be able to withstand the load and either freeze for a long time, or go into BSOD, or randomly reboot or turn off. And this is regardless of overheating of the video card or processor, although, naturally, both factors can occur.
6. Overheating of components
One of the most common reasons why a computer turns off by itself is overheating of the processor, video card or hard drive. The protection of these components is triggered. Again, clinical manifestations may vary - both with and without BSOD. All components are required under load. If it reaches a critical threshold, it is necessary to eliminate the cause of overheating:
Check whether the PC case is sufficiently ventilated;
Clean the computer from dust, replace the thermal paste on the processor;
Increase the cooler speed, replace it or strengthen the cooling system;
Replace HDD(often overheating HDDs are not repaired due to the impracticality of repairs, since a used hard drive in good condition is cheaper than the services of a service center to restore an overheating one).
- Note: some laptops, for example, certain HP models, are initially susceptible to overheating of the HDD due to the poor design of the device itself. For such laptops you can choose.
7. Power supply
Another pretty one common reason why the computer turns off by itself - problems with the power supply. It may either be faulty or too weak to handle powerful user tasks such as running resource-intensive games. Only a specialized specialist can determine whether the power supply is faulty.
8. Power surges
A computer, more than consumer electronics, is sensitive to power surges, which, alas, is often found in settlements remote from cities. And power surges can lead to unauthorized shutdowns of computers, while other equipment in the house can continue to work. In such cases, it is necessary to take care of a surge protector or an uninterruptible power supply (UPS).
9. Incorrect overclocking
10. Other
Other reasons for random computer shutdown may include:
Swollen or leaking capacitors, cracks in the soldering of the motherboard;
The motherboard chipset is heating up (shutdown can occur right at the computer startup stage).
Without appropriate specialized knowledge, such issues, naturally, need to be resolved with the involvement of a service center specialist.
Promised Stories
They brought us a computer to the service center that turned off on its own (according to the client, it was always late in the evening). In search of a solution to the problem, we disassembled the entire Windows piece by piece and found nothing criminal, except for five malware, which were deleted, after which, just in case, they restored the integrity of the system files. It was already late and we got ready to go home, deciding to leave the computer on. The system engineer worked for more than a day and we safely delivered it to the client. The next day the man came again and said that the computer turned off last night. My partner decided not to suffer anymore and reinstall Windows, but I was against it. Determined to find the reason and write an article, I took the computer home. My PC didn’t turn off for three whole days! And then a wonderful thought came to my mind. I called the client and asked what he usually does at the computer in the evening and he replied: “Nothing special, watching movies”! It turned out that our victim uses only two programs: a browser and the KMPlayer player, in the settings of which I found what I was looking for.
The second incident is also interesting, but I won’t describe it in full, I’ll tell you the essence. A client brought a PC, which at his home turned off several times during the day, but worked fine for us for a week. In the end, the problem turned out to be a faulty electrical power cable for the computer, which he did not bring with him. I made this assumption and asked the client to bring the cable. When testing the cable for an open circuit with a multimeter, my assumption was confirmed and all that remains is to replace it with a new one!
