The computer does not turn off after shutting down. Problematic driver or problematic device

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A fairly common “trouble” in computer operation is regular failure time. If you notice this error and are concerned about it, do not rush to send your computer to service center. You can make a “diagnosis” and cure it with your own hands.

For what reasons does the time on a computer get lost?

There may be several reasons. First, pay attention to whether the date set on the computer gets lost over time? And also at what point do these parameters fail - during operation, after shutting down, or when connecting to the Internet?

Depending on the manifestations of the error, the following options for eliminating it are used:

1. The date is correct, the time settings are lost, presumably when connecting to the Internet. The solution to this problem is to cancel synchronization of the computer time with the exact time server on the Internet. You can do this by changing the date and time settings of your computer in a way convenient for you - either through the control panel, or by clicking on the time icon in the task tray.

2. The date is correct, the time gets lost when the computer is turned on for a certain number of hours. The reason is that the time zone set on the computer does not correspond to the actual location. In the same date and time settings, you should adjust the time zone selection.

3. The time and date are lost simultaneously after the computer is turned off. To understand this situation, let's touch on the theory. The fact is that in order to maintain constant settings when the computer is running, in the system, during a power outage, there is a subsystem called CMOS - a memory chip that stores all startup data. CMOS is powered by a CR2032 battery. Average term its service life is 3 - 4 years. Further, like any other battery, it becomes unusable, and the CMOS system ceases to maintain constant startup parameters.

There is only one way out - the battery needs to be replaced.

On motherboard it is located in an accessible place and can be changed without much difficulty. We disconnect the computer from the network and remove, depending on the type of system unit, either its right sidebar, or the entire housing cover. A round white “tablet” the size of a two-ruble coin will be clearly visible on the board. This is the battery.

Having previously purchased the appropriate type of battery (CR2032) from a computer store, replace it.

After this, when you start the computer, do not forget to go into the BIOS and set the date and time parameters necessary for operation.

Like these ones simple steps will help you determine the cause and solve the problem with time failure on your computer.

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For any personal computer user, the situation when the computer suddenly breaks down is always sad (although what is not an excuse to drink coffee or chat with a friend at work). Yesterday, the PC that was working properly today categorically refuses to carry out user commands or does not turn on at all. And sometimes such an unpleasant situation arises when the computer turns on, the user has tuned in and has already begun his work, but after a while the monitor goes out and the computer turns off. What to do in this case and what is the reason for this “behavior” of the PC?

There can be quite a few reasons for malfunctions. IT Pro specialists know that one of the main reasons for a sudden computer shutdown can be completely or partially faulty unit nutrition. Based on our experience, this particular malfunction comes first when dealing with such a problem. It can be diagnosed by simply replacing the power supply with another known working PSU (power supply). In this case, it is better if the power of the new power supply is not lower than the power of the existing one. It is also necessary to pay attention to the fact that the number and type of connectors on the power supply used for diagnostics correspond to the connectors on the old one. Otherwise, you may have to additionally look for adapters. In order to replace the power supply, you need to open the system unit, in most cases, unscrew two screws on the back of one of the side covers and slide this cover back. On the back of the system unit, the power supply is held in place by four screws, unscrew them and carefully pull out the wires leading from the power supply to the devices. As a rule, one hour of uninterrupted operation will be enough to understand that the power supply is the real cause of problems in your computer.

Although problems with the power supply are the most common, diagnosing them at home (in organizations there are usually no problems with this) is often difficult due to the difficulties associated with finding a power supply for such diagnostics. So first make sure it works for you electric outlet, surge protector or source uninterruptible power supply. Check that you haven’t simply pulled out a wire, the machine has turned off, or you’ve accidentally pressed a button. surge protector. More than once we have encountered the fact that there is simply no voltage on the wire that goes to the system unit. A malfunction is another common reason for a computer to shut down unexpectedly.

The computer turning off after some time of operation may also be due to overheating of the processor or video card. The cooler responsible for cooling the processor may not work at full capacity due to the same “overload” with dust, which prevents the normal flow of heat, or because it has exhausted its working life and requires replacement with a new one. In any case, it is recommended to keep the equipment clean and be sure to thoroughly vacuum the inside of the system unit.

But sanitary methods for removing dust are unlikely to help if the motherboard (capacitors, etc.) fails. It will not be possible to avoid expenses here, since solving this technical problem This can only be done by replacing faulty parts or having them repaired at a service center. This malfunction It is common, but you won’t be able to determine it yourself at home. A trip to the service center is required.

Another common cause of problems is faulty strips. random access memory. Moreover, in the presence of malfunctions of this equipment Even if the computer turns on, its resources will not be enough for stable operation. The reasons for the failure of RAM strips can be different. Most often, if this kind of problem occurs, it will not be possible to solve it without replacing the memory sticks with new ones. Therefore, for diagnostics, find a bar of a similar DDR type, DDR2, DDR3 and replace the stick in your computer with it.

Sometimes users do not consider it necessary to turn off the computer correctly (command: Start - Shutdown), but turn it off simply by unplugging the cord from the outlet. This causes a crash operating system and the PC stops working normally. Therefore, you don’t need to waste time to turn off your computer correctly.

In addition, viruses can cause such a failure. In this case, it is already necessary to perform anti-virus treatment of the computer or even complete reinstallation operating system.

Problems computer equipment manifest themselves in a variety of ways, but some “miracles” force us to scratch our heads for a long time: what could have happened to a laptop that just 5 minutes ago was working at “five plus”? It worked and worked, and then suddenly refused... to turn off. Although the problem is non-standard, in 90% of cases you can cope with it without a specialist. So, let's talk about everything in order.

How does it manifest itself?

When we say “the laptop won’t turn off,” we most often mean one of two things:

• Windows does not shut down - does not respond to the shutdown command through the Start menu. Or the shutdown process continues indefinitely until the user turns off the computer by pressing the power button.
• The system shuts down as expected, but the machine remains turned on - the screen goes blank and the processor cooling fan continues to spin. Sometimes the indicators (power, wi-fi and others) remain on. Closing the lid and pressing the power button for 4 seconds does nothing; the laptop can only be turned off by disconnecting the power supplies.

Why does this happen?

There are many things that can cause a problem. More precisely:

• Software, including malware.
• Operating system errors. This, in particular, was encountered by users who were among the first to update their computer to Windows 10.
• Hardware drivers (especially made by Intel, as well as any network adapters, video cards and devices connected via USB).
• Faulty equipment.
• BIOS failure.

Let's localize the problem

Software

Problems with programs and viral infection manifest themselves in the first type - the inability to complete Windows operation. This option is likely in cases where the problem arose after installing new software or is accompanied by symptoms of the presence of viruses (unknown processes in the task manager, lags, pop-up advertising windows and so on.).

Drivers and system

Errors in drivers and the OS itself are manifested by both the endless shutdown of Windows and the fact that the laptop continues to work when the lid is closed and pressed. Power buttons. The reason is most likely this if the problem was preceded by one of the following events:

• Reinstalling the operating system (the failure occurs only in the new OS, but the old one turned off the laptop normally).
• Updating the operating system (installing current updates, upgrading to Windows 10).
• Updating or installing new drivers.
• Change your computer's power settings.

However, operating system and driver errors can occur for no apparent reason.

Iron

Hardware failure is usually accompanied by other symptoms. For example, infinite shutdown windows, which arose due to incorrect work hard disk, appears and slow loading, and lags while using the laptop, and errors, including blue screens death (BSoD). RAM defects also manifest themselves as BSoDs, problems when copying and moving files, errors in launching programs, etc.

The “clinic” of hardware problems is very diverse and also often does not have obvious cause-and-effect relationships.

BIOS errors can occur due to the exhaustion of the CMOS battery life (on laptops older than 4-5 years), incorrect installation updates or damage to the chip where the firmware is stored. They manifest themselves in the fact that the machine does not turn off completely when you press the power button, does not reboot, and does not go to sleep.

If you tried to fix the problem by reinstalling the operating system, but this did not help (provided that you installed the correct distribution and tested drivers), then the reason lies in a hardware malfunction or a BIOS failure.

We carry out step-by-step diagnostics and fix the problem

Checking and adjusting power settings

Statistically, most problems with turning off a laptop are related to power settings, so we’ll start there. So, open “Power and Sleep Options” by clicking on the battery icon in the system tray or by going to the “Power Options” section of the Control Panel. Click in the navigation menu (on the left) “Power button actions.”

Make sure that the list of instructions for pressing the buttons and closing the lid does not select “Turn off display” or “No action required.”

If Shut down, Hibernate, or Sleep is set and your laptop still won't turn off completely, try disabling it one at a time. Quick start, Sleep and Hibernate in the list of shutdown options.

If there is no result, return to the beginning of the “Power Options” section and click “Power plan settings” opposite the active item.

The last operation can be done through the device manager, checking “Allow shutdown to save power” in the properties of each USB controller, but this is faster.

Test run in safe mode

To check whether program errors, viruses and most of the drivers are involved in the problem, starting the computer in safe mode. It loads only the main components of the operating system. Programs that start working with the OS and viruses are inactive in this mode.

To enter safe mode:

• On Windows XP, Vista and 7: reboot, before starting the next OS startup, press the F8 key and select “Safe Mode” from the menu.

If the laptop turns off normally in safe mode, the reason lies in the components that do not work in it.

What to do

• Scan your system with an antivirus.
• Boot into normal mode, open the “Startup” tab in the task manager (in Windows XP and 7, startup is located in the Msconfig utility), disable the programs one by one, restarting the computer each time and checking if the problem is resolved.

• Reinstall device drivers. Special attention — Intel drivers, as one of the most common culprits of failure, in particular, the Intel Management Engine Interface. Along with reinstalling this driver, it is recommended to uninstall Intel utility Rapid Storage Technology (if available).

System stability assessment

If after finishing work in safe mode the laptop still does not turn off, the source of the problem is probably in the OS itself or in the hardware. The system stability monitor can give you a hint.

To launch the monitor, go to the “System and Security” section of the control panel, open “Security and Maintenance”, expand the “Maintenance” tab and click “Show stability log”.

The monitor window displays events that affect Windows stability. Click the date when the problem occurred and view the list of errors. In some cases, the system directly indicates what their source was. In my example this is equipment.

What to do

• Click “Search for a solution” next to the error message and follow the instructions to resolve it.

If the system does not offer anything specific or does not indicate the source of the problem, you will have to call on the event log to help.

Event log analysis

Magazine Windows events Among other things, it collects information about the computer's performance during shutdown. If shutdown takes longer than it should, an error entry appears in the log indicating the reason − specific application, services, drivers, etc.

The most convenient way to open the event log is by searching:

The section where the necessary data is stored is located in the list “Application and service logs” - “Microsoft” - “Windows” - “Diagnostic-Performance” - “Running”. The middle part of the window displays all events belonging to this category. We are interested in the category “Performance monitoring during shutdown” (all event codes starting from 200).

Search this list for information about errors and critical events. A single click on a line shows error information at the bottom of the list. To view it in separate window, double-click on the line.

What to do next

The identified source of the problem should be eliminated if possible. If this is an application, remove it from the startup list or uninstall it. If the service is disabled (except for those critical for the operation of the computer). If the driver is a driver, reinstall or disable the associated hardware in Device Manager.

Other ways to resolve Windows errors

• If a failure occurs after updating the operating system, installing or uninstalling software, treating viruses, cleaning the registry and other similar operations, roll back to a restore point. Press Windows + R on your keyboard (to launch the Run utility), enter the command rsrtui in the Open field and click OK - this will launch the System Restore utility. Select control point, which was created before the problem occurred, and follow the instructions in the program.

• Failure due to corruption system files, eliminates the sfc.exe utility utility. To launch it, open command line(from administrator), enter the instruction sfc /scannow, press Enter and wait for the scan and recovery to complete.

• Windows 10 problems that cannot be fixed by any of the described methods are often fixed by the Microsoft MediaCreationTool utility (download by clicking on the “Download tool now” button, run it, select the “Update this PC now” option and follow further instructions). Its work lasts 40-60 minutes, it may seem to you that the system is being installed again, but after finishing all your files and settings will remain in place. However, in 2 cases MediaCreationTool will not help you: if the laptop is not connected to the Internet and if the shutdown problem is not related to the operating system.

Resetting BIOS Settings

If all attempts are exhausted and the laptop still does not turn off, this is the last thing you can do at home. But provided that:

• the car is not under warranty;
• you have the skills to disassemble and reassemble a laptop.

The essence of the method is to briefly remove the power source CMOS memory- a small round battery on the motherboard (or several batteries in one casing). The difficulty is that the battery can be anywhere - sometimes you need to complete disassembly apparatus. On some models the battery is soldered, but more often it is connected through a connector or installed in a socket, as in the picture.

Before the procedure, do not forget to completely disconnect the laptop. After 15-30 minutes, replace the battery, turn on the device and check if the problem is solved. If yes, I congratulate you. If not, the problem is probably more serious than it seemed and requires diagnostics at a service center. But this, fortunately, does not happen often.

To face a problem random shutdown The laptop can be used by both an active and a novice user. Laptop computer turns off unexpectedly, so you may not have time to save important data for work or school. Why does my laptop turn off by itself? If it is not possible to take your computer to a service center for repairs, you should try to determine the root of the problem yourself.

Possible reasons for laptop shutdown

Why does the laptop turn off by itself? It can perform a reboot when the chips get too hot. Turning on and then immediately turning off the computer indicates possible problems with meals. Shutting down during the game is a consequence of dust accumulated on the fan or driver mismatch. Sometimes shutdown occurs only when running on battery power, which indicates a faulty battery.

Laptop overheats

The laptop heats up and the system turns off due to the following factors:

1. Natural dust. Through holes in the cooling system, particles fall onto the fan. This slows down the rotation of the blades, which is the answer to the question of why the laptop gets hot.
2. Thermal paste drying. This process does not affect the operation of the cooler. The processor begins to overheat due to disruption of heat transfer to it.
3. Cooling failure. After a while, the fan axes get lost and it stops functioning normally.
4. The surface on which the device is placed is too soft. This disrupts the process of natural ventilation of the housing from below.
5. Possible infection virus programs, due to which the laptop heats up and turns off.

Turns on and off immediately

Sometimes the device shuts down at the stage of loading the operating system, i.e. without overheating. The problem here is nutrition. It is associated with a breakdown of the battery, power supply or charging socket. If the laptop turns on and turns off immediately, this is a hardware failure, i.e. violation BIOS firmware. The program is a repository of all settings and system data of the computer. In addition to the above reasons, there are several more:

• short circuit in the motherboard;
• malfunction ;
• problems with bridges.

During the game

The laptop is in excellent condition while working in regular programs, but why does it suddenly turn off when you play? Here are some reasons for this problem:

• dusty fan and insufficient processor cooling;
• driver mismatch with device model;
• software glitch at increased load to the video card and processor.

When running on battery

The device can work perfectly from the network, but turn off when operating from charger. This is evidenced by incorrect display charging percentage. The battery indicator does not detect it, and when the power is removed, the device simply turns off suddenly. There are reasons for this:

• battery failure;
• end of battery life;
• failures in the charge level controller.

When disconnected from the network

If the device connected to the network works without interruptions, but when the power plug is pulled out, it suddenly turns off - this indicates a problem with the battery. It is more likely to be discharged, faulty, or its resources have already been exhausted due to prolonged use. The shelf life of the device's battery ranges from 2 to 3 years. If the computer is still new, then this is a factory defect. Incorrect settings The power supply of the device affects its condition. If you disconnect the laptop from the power supply, the screen on the laptop goes dark and the device goes into sleep mode.

What to do if the laptop turns off by itself

Whatever the reason that led to the PC turning off, it has its own solution:

1. Cleaning. In case of overheating special programs. If it exceeds 90°C, then clean the cooling system from dust. The noise and temperature will then decrease.
2. Antivirus. If there are viruses in the system, update their database and perform a comprehensive scan with programs - Kaspersky or Cureit.
3. Update or reinstall drivers. The problem lies in the inconsistency of these programs with the laptop model. For example, you cannot install on lenovo drivers from toshiba or acer and vice versa. For this reason, remove all old hardware drivers, download them from your manufacturer's official website and install them again.
4. Firmware rollback. To fix the problem, restore the firmware version that was installed when stable work. If it doesn't help, update completely BIOS program.
5. Reinstalling the operating system. You can fix unstable system behavior by completely reinstalling Windows. This will help get rid of viruses that were not detected antivirus program.
6. Checking the power supply. If the problem is a faulty battery, replace it. Before you panic, check that the power supply is connected and that the cord and plug are not damaged. Why does my laptop screen turn off? Make sure your power settings are correct so that your computer does not go to sleep when unplugged.

Video: why the laptop turns off

Even experienced computer users sometimes cannot find the answer to why the laptop turns off by itself. Due to the variety of reasons for spontaneous termination of work, it is necessary to double-check Personal Computer for the presence of any changes. It could be viruses, overheating or crashes software. In order not to delve into the device settings for a long time, it’s worth watching a useful video. It contains recommendations on the first steps to take if a shutdown problem occurs.

A situation related to the fact that the computer does not turn off after shutting down the program or physically, is quite common. There can be quite a few reasons for this phenomenon, but most of them are related to the settings of the system itself or problems with the functioning of computer hardware. Of course, it will not be possible to consider all the failures and troubleshooting methods, so we will focus on the main solutions that help solve the problem that after clicking “Shut down” the computer does not turn off. There are several main methods that, depending on the cause, can eliminate it.

Why doesn't my computer turn off after shutting down?

First of all, you need to distinguish between problems associated with hardware and software. Windows environment. With laptops in in this regard the situation is simpler, since in the power supply circuit you can configure the action of the power off button ( double click, For example).

But often the reason that the computer does not turn off for a long time after finishing work is associated only with some people working in background programs or problems with certain devices, access to which for some reason is not available or is limited by system services. Based on this, you can apply several basic methods to get rid of such failures.

Setting up autorun configuration

The first thing to do is to end the problematic processes in the “Task Manager”, which can be launched with the usual three-finger combination Ctrl + Alt + Del or through the “Run” console by entering the taskmgr command, where in the services section you need to disable the display of Microsoft processes and end all rest.

After that in Windows versions Below the tenth, you should use the msconfig command in the Run menu to access the settings and startup items on the corresponding tab. In Windows 10, this command can also be used, however, to configure the appropriate settings, the user will be redirected to the “Task Manager” tab. In any case, you need to uncheck all automatically starting processes. You can only leave the ctfmon element, which responds to displaying a change of language and keyboard layout in the system tray (this process does not exist in Windows 10). At the end of the actions, a reboot is performed. The trick is that the situation can repeat itself. The computer does not turn off after shutting down or indicating a restart, so what should I do? You will have to force shutdown by long pressing the power button on your laptop or system unit(without a reboot, the changes made will not take effect).

After Windows shuts down, the computer does not turn off: service settings

Windows system services running in the background, the presence of which the average user may not even realize, can also cause a lot of trouble.

To check them, use the services.msc command entered in the Run console, and then look at the startup type values ​​for all elements in the right side of the editor. Typically the value will be set to automatic. However, some of them can be disabled or restarted. So, for example, why do you need a “Print Manager” if a printer is not installed on the system? The process is disabled without problems, and you don’t even need to use the Programs and Features section.

You can find the problematic service through the system activity log, which can be called in the “System” section, or run it when Windows startup by pressing the F8 key at the boot stage (as for the mode Safe Mode). In the case of actions with Windows 10, this option does not work (you will have to reboot the system with the Shift key, after which further action selection will be required).

Device driver and power supply issues

If even after such actions the computer does not turn off after completion of work, you will have to check the functionality of the hardware and installed drivers in the Device Manager, which can be accessed from the Control Panel, through computer administration, or through the devmgmt.msc command in the Run menu.

If there are any problems with the operation of the devices, the problematic elements will be marked with yellow markers (you can view unloaded drivers in the same log, where there will be a line like driver did not loaded). But most often failures occur with network cards, USB controllers, etc.

In this situation, you need to call up the properties menu, then go to the power management tab, where you need to specify permission to turn off the device to save energy consumption. If this is not the problem, move on to the next step.

System registry settings and settings

If the computer does not turn off after shutting down, you can try to make some adjustments in the system registry editor, which can be called through the regedit command in the Run program launch console.

Here you need to find the parameter in the HKLM branch that is responsible for the closing time of programs and the WaitToKillServiceTimeout timeout, and change its value from the default 20000 (20 seconds) to 6000 (6 seconds) or use other intermediate or lower values. After this, you just need to exit the editor and preferably completely reboot the operating system.

BIOS

In some cases, although not always, setting the primary BIOS input/output system in the parameters can help. activated mode ACPI, for which in the section boot is set to Enabled.

This method is only suitable for devices that have FireWire.

Conclusion

Not all situations related to the impossibility of automatic shutdown stationary terminals and laptops. Nevertheless, at least one of the methods, as practice shows, turns out to be effective. The whole problem initially is to find out the nature of the failure, and only then make the appropriate decision to eliminate the problem.

Initially, you should pay attention to problems with device drivers and entries in system registry, and also use the removal of unnecessary startup items, since they are quite high degree download system resources and may cause power outage problems. When managing power plans, it is desirable to set the recommended balanced parameters, rather than economy or high performance. Sometimes this helps too. However, as already mentioned, first - the reason, then - the solution.