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. There may be something wrong either software part devices or hardware. 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.
The computer turns off by itself
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 is a 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 to reset the binding to the components using the standard Windows utilities Sysprep.
3. Viruses
Viruses can cause random computer shutdowns, both their direct involvement and the consequences they cause in the form of the 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 by itself, 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 hang around as normal. Windows scheduler(this is written 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 is the AdminPE and .
What hardware reasons can cause the computer to turn off on its own?
5. Heavy loads on 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 fairly common reason why a computer turns off by itself is 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 network filter or source 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 it to us service center a computer that turned off by itself (according to the client, always late in the evening). In search of a solution to the problem, we disassembled all of Windows piece by piece and found nothing criminal, except for five malicious programs, which we removed, after which, just in case, we 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 answered: “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!
I’m more than sure that my blog is not the first place where you look for the answer to the question “why does the computer turn off.” I hope this is the last place you are looking possible reason and how to eliminate it.
Recently, I also encountered such a riddle, I looked through hundreds of sites, and their main problem is that they focus on one thing. Some write that the problem is in the power supply, others insist on cleaning the computer. Yes, indeed, because of this, the PC may turn off, but there are a lot of other reasons, which I will write all in this post, and you can independently diagnose it at home.
Dust, capacitors, thermal paste
I decided to combine 3 problems in one place, for the reason that in any of the cases it is necessary to disassemble the system unit, why not do everything at once. Besides, if this is not the case, cleaning the PC, checking the capacitors and changing the thermal paste will never hurt. I generally recommend doing this 2 times a year.
Shuts down due to dust
The first time I encountered such a problem was many years ago. It was my first computer, I played games on it and nothing more. After 2 years, the PC began to turn off for no reason, you turn it on, it works a little and turns off. I took it to the service center, they laughed, cleaned it, and said that the computer was the second vacuum cleaner in the house. Since then I have not started this moment, and have not encountered such a problem again.
How to clean your computer from dust
This is what I do: open the lid system unit, I take it out onto the balcony and put the vacuum cleaner on blower. So we blow for a couple of minutes and everything will be like from the store. I saw another good video on YouTube, I recommend watching it:
Apply thermal paste
Personally, in my experience, the computer turned off due to a large layer of thermal paste, so you need to apply it correctly. I recommend buying a disposable tube/bag, squeeze out just a little watery liquid from it until it becomes a normal paste (the consistency is similar to toothpaste). After this, drop a drop directly onto the center of the processor and rub. It is best to do this not with bare hands, but to wrap a disposable bag around your finger.
Perhaps it will be better and easier if I show you on video how to apply thermal paste correctly:
Checking the capacitors
Take this extremely seriously, because due to faulty and swollen capacitors, your motherboard and its components. To check and find swollen capacitors, disassemble the computer and carefully inspect all the capacitors (they look like a barrel), an example of a bad capacitor:
Also, in addition to the motherboard, you need to check the capacitors in the power supply. Take it apart and inspect it very carefully.
If you find swollen capacitors, replace them or take them to a service center and have them solder in new ones.
Shuts down due to overheating
Your computer turns off automatically when it reaches a critical temperature (70-80 degrees). This is necessary so that the motherboard does not burn out. Despite the fact that this is an emergency shutdown, if you constantly turn on the computer again, over and over again, then your components may burn out. Personally, my video card burned out like this.
How to check CPU temperature
You can find out the processor temperature in 2 ways: 1 - in the BIOS, 2 - using special program. First, let's figure out when your computer turns off: under load (in games and when watching videos) or even without load? If under load, we will test using programs, if even at idle, then you can look in the BIOS.
Find out the temperature in BIOS
First you need to get into it. Restart your PC and press “Delete” or “F1” depending on your motherboard. Now you need to find the “Hardware Monitor” tab
Where "CPU Temperature" is the temperature of your processor and it should not rise to 70 degrees Celsius. Leave this tab for a while and do not touch your computer. If within 10-15 minutes the temperature rises to more than 60 degrees, then your processor is faulty.
It is quite possible that you have problems with cooling, change the thermal paste and look at the fan central processor with the computer turned on (it should rotate).
Also, in the screenshot above, pay attention to line 3, where “CPU Fan Speed” is the rotation speed of your cooler. It should be at least 1000, and preferably 2000 for complete cooling.
Temperature monitoring software
If the computer turns off due to overheating only in games (under load), then testing in the BIOS is not suitable for us.
Download free program CPUID HWMonitor from the official website https://www.cpuid.com/softwares/hwmonitor-pro.html
Install and run the utility. Now you can check the temperature:
Minimize the program and launch the game. After your computer turns off, let it cool and turn it on. In the folder with the program you will see text file, in which there will be a report - open it and look at what temperature the computer turned off.
You can treat with new system cooling, additional coolers and be sure to remember to change the thermal paste. This applies not only to the processor, but also to the video card.
Power problem
Have you noticed any power outages? The computer operates smoothly in the range of 200-240 volts. If more or less protection is triggered and the computer turns off. 1, 2, 3, 5 times is normal, and then the computer's power supply fails.
Also, it’s worth trying to plug the computer into a different outlet, I personally had this happen. In addition, disassemble the computer and check whether the wires and cables are tightly connected.
Turns off due to new components
For example, you bought a new video card, very quickly ran home eagerly to test it, and then bam and the computer turned off. A couple of questions for you: how many watts is your power supply? Before upgrading, did you estimate how much power your power supply needs?
Enter all your hardware, and it will show you how much power supply you need to install. From my experience I will say that today 600 watts is quite enough.
OS errors
A fairly common problem is that the computer turns off due to some kind of problem. system error. Specialists always look at the log files, after which everything becomes clear. Problems sometimes arise due to drivers, so it is recommended. Perhaps some file was deleted and there are a million other reasons, including viruses. If all the methods listed above did not help identify the problem, it would be good if you.
RAM problems
It happens when RAM fails, this failure is typical - the computer freezes when copying, shutting down and starting programs. Determining whether the RAM is working properly is quite simple:
Windows 7-10 – open Start and paste – mdsched then press Enter. Next, click “restart the computer” and wait for the result (10-20 minutes).
After the check is completed, you will have one of two things, either errors will appear or you will receive a “no errors found” notification.
Conclusion
You know, I end most of my posts with the phrase:
Not like that in a cunning way We saved money and didn’t take anything anywhere!
So, in in this case Recently I myself prefer to take my computer for diagnostics. As experience shows, if the computer turns off by itself, this is not a mystery for a couple of hours and you will have to tinker. It’s good if it’s something banal, but there are cases when, for example, the cable has dried out or a contact has broken off somewhere, the power supply has failed, etc. but you won’t see this so easily at first glance.
I think it’s better to leave a couple of dollars in the SC and spend time wisely. You will have a rest and people will have work).
Many users wonder Why doesn't my computer turn off after finishing? Windows operation 7, 8 . There are a lot of reasons, in this article we will try to help you by considering the most common problems and ways to solve them. Common problems include:
- The computer does not turn off through start when you press the “shutdown” button (continues to function)
- There is a long shutdown
- The PC cannot shut down at all (the “shutdown” screen appears all the time)
User reactions in such situations may vary. Someone de-energizes the PC, and someone turns it off every time with the power button, holding it down for 5-10 seconds. These shutdown methods have a detrimental effect on the performance of your machine, and it’s not for nothing that special buttons were invented for these actions.
Let us conditionally divide the presented material into two parts. First, let's look at possible software problems, in the second hardware. Before going through the steps below, try performing a system restore to a date before problems were noticed.
Important! Be sure to read the material. Discussed here additional methods, no less effective, also for a desktop PC.
Computer shutdown software problems
The most common errors that prevent your computer from shutting down are: incorrect work programs, service failures, virus software actions. To try to identify the error, you can look at the stability log. To view it, expand “maintenance” in the main window, then click the stability log link.
In the stability monitor window, you can select a date and view the report from below. If you click on the error, you will receive a detailed description of it.
This way, you can identify why the computer does not turn off after shutting down or takes a long time to turn off. Follow the steps below (not necessarily in this order), the following actions will help you.
1. Based on viewing the log, remove the program, remove it from Windows startup or disable the service that is causing errors. Then reboot the system, try to turn off the computer.
If nothing has changed, use a “clean boot”, that is, launching the elements necessary only for Windows works. In type msconfig and press enter. On the “general” tab, select “selective launch”, check the options as in the screenshot.
Visit the “services” tab, check the item at the bottom that does not display Windows services. Next, click “disable everything”, OK, “reboot”.
This diagnostic tool will definitely help you identify why your computer won’t turn off in Windows 7, 8, and what programs and services contribute to this. Run the necessary elements and get rid of the suspicious ones.
2. Scan your entire PC for malware; viruses can negatively affect the stable operation of the system. Before scanning, make sure you have the latest virus database update.
3. Install Windows updates. Microsoft releases updates to resolve software and driver problems. To download update packages, go to the center Windows updates. When you try to turn off your computer, you will see the status of the installation process of downloaded packages, which can take quite a lot of time. Try downloading the package.
Computer shutdown hardware problems
If you have tried all the methods, and the computer does not turn off after Windows 7, 8 shuts down, then it is likely that the problem lies in the hardware. These include hardware, driver and Bios errors.
1. Remember, maybe the PC stopped turning off through startup when you installed new equipment, but there may be problems with equipment (device) that was already installed a long time ago. In this case, disconnect the device (if possible), check whether the installed drivers or disable the hardware in Device Manager.
In the search, type “device manager” and press enter. In the window you will see a hierarchical list of all the equipment that is installed on the computer. Go through the list looking for the yellow triangle with exclamation point(often found) or another icon indicating a problem with the device.
Double-click on an element with an icon to go to its properties. On the General tab, in the Device Status area, the error is described. Depending on the error status, update, rollback, install the driver in Windows 7, 8 (visit the “driver” tab) or disable the device.
Click on device right click, select “disable” from the menu. Next, click “yes”, then the device’s icon will change and it will no longer work until you turn it on.
To effectively identify why the computer does not turn off after shutting down Windows 7, 8, you can use the boot log, which lists the drivers and their status. Call up menu additional options load() by pressing F8 before starting Windows. Next, select “boot logging” and press enter.
After Windows downloads, go to Windows directory, use or search and find the file ntbtlog.txt, open it. Now look for any driver issues. The did not load driver status means that the driver did not work. Next, go to device manager and follow the steps described above.
2. If you have used all the methods and the computer continues to not turn off, then try the one responsible for turning the PC on and off. If after resetting the BIOS settings there are no changes, then go to the website of the motherboard company, download Latest updates and update Bios to the latest version.
That's all, all the ways to help correct shutting down the computer and on time. I strongly recommend that you follow the link about turning off the laptop in order to increase the chances of eradicating the problem.
Every user has at least once felt the consequences of problems at work. software computer. And it doesn’t matter whether the PC is used for work, for games, or as a multimedia center, skills prompt solution problems will make life easier for everyone. This article will discuss a fairly popular question: why does Windows 7 take so long to shut down?
Before we begin describing the causes and troubleshooting options, it must be said that the duration of the PC shutdown depends on its characteristics. The more powerful the hardware, the faster the presented procedure will be performed. The computer usually shuts down within 12-30 seconds. In addition to hardware components, the duration of the shutdown is influenced by the parameters and Windows settings. It is logical that if the PC hardware is not the most up-to-date, the shutdown time will be longer. However, if the most modern one still takes longer than 30 seconds to shutdown, troubleshooting and optimization becomes necessary.
Main reasons
Often main reason The reason why Windows 7 takes a long time to shut down is the large number of running programs and processes. This happens because the operating system is trying not only to close them, but also to save all their data and reports. Respectively, large quantity applications - longer shutdown time.
Software conflict
The second popular reason is a software conflict. One application can hinder the whole operating system during shutdown. And until such a conflict is resolved, the computer will not turn off, and at the same time its shutdown time will increase. This is the same problem you should look for if Windows 7 freezes when shutting down. Often, such conflicts occur if the program freezes or does not allow its process to be terminated forcibly. Very often, such programs are products that change the decoration and design of Windows.
First, try closing everything manually before running programs, maybe after these actions the computer will turn off noticeably faster.
To solve this kind of problem, you need to analyze your manipulations that were performed on the computer. It is quite possible that not so long ago the system was installed new driver, program, a new device is installed in the expansion slot. Easy removal of recent ones installed programs and components is often sufficient. If that doesn't help, try rolling back to a previous restore point.
Take out the trash regularly
If the computer turns off for a long time, Windows 7 may be to blame. For example, after some time, a large amount of “garbage” accumulates in the system. This usually happens due to installing and uninstalling programs, installing updates, large number Also, the OS may crash when shutting down if it is system files damaged.
To solve the problem, regularly use special utilities that clean the OS, removing remnants of previously uninstalled programs, unused drivers, and correcting registry errors. CCleaner is considered one of the best.
Malware
If your computer takes a long time to shut down, Windows 7 may be responding to a virus infection in this way. They almost always work in active mode: they block system processes, do not allow themselves to be “killed”, and if the malicious program can be terminated, it immediately starts again. Very often, such viruses inject their code into your computer, and the presence of an antivirus never guarantees absolute protection.
Perform a full scan of your PC for malware with an antivirus distribution that is loaded from a flash drive or disk. The antivirus used in the system may be infected, and therefore will only create the appearance of protection. Always download only the latest versions similar applications with the latest virus databases. The most popular and effective program of this kind is Cureit.
Try to check the processes in the task manager yourself; it is quite possible that by ending the suspicious program, the computer will turn off quickly and the problematic component will be found.
Drivers
The last non-obvious reason why Windows 7 takes a long time to shut down is problematic drivers. They may be installed with errors, damaged during Windows operation, or modified by viruses, even if malware were immediately deleted.
Try downloading and running the DriveCleanup program, it is distributed free of charge and can be run on any OS Windows family. While running, the application removes all unused drivers from the system, and after finishing its work, you must restart the computer.
Obvious reasons
Few free space on drive C. Accordingly, the computer takes a long time to turn off. Windows 7 simply does not have enough free space to record and save all the settings, so the system must first delete old temporary files. Try to increase the amount of free space, especially since experts Microsoft It is recommended to leave about five gigabytes unused.
You can remove programs or games that have not been used for a long time, leave only the last system restore point, delete the update cache, clear unnecessary files"Downloads" directory.
In addition to everything that was mentioned above, the overall stability of the operating system is affected by the dustiness of the system unit. If the radiators have not been purged for a long time, and the contacts on the RAM have not been serviced for a long time at the wiping level, the computer may begin to overheat, which leads to various types of failures.
This preventive measure can solve many problems, because programs work thanks to hardware capabilities. Often, solving a problem only by cleaning the operating system from garbage, the user forgets that garbage can accumulate in the system unit itself. This advice is especially relevant if you have been using Windows 7 for a long time, so it may not have anything to do with it.
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.
- Malfunction in RAM. Characterized by this type The problem is that before turning off the computer starts to freeze and all functions slow down. In order 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 at the service center.
- Motherboard failure. Spontaneous shutdown PC will be caused by either a crack or chip on the motherboard, or a burnt 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 correct 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.