Why Laptop Is Turning Off By Itself (Explained)


Do you ever find yourself in the middle of working on something on your laptop, only to have it unexpectedly shut off? There are a variety of potential causes behind why a laptop may be turning off by itself. Have you ever tried to figure out what the cause might be? What have you done to try and solve the problem? In this post, we will look at four potential explanations of why your laptop is shutting itself off. 


Here are four possible potential reasons then I exaplin below: power settings, fast Startup, overheating or operating system Issues. Note that there could be other reasons why your laptop is turning off by itself, and it may require further investigation. However, these are some of the most common reasons.


Power Settings

Your laptop’s power settings determine how it behaves when it’s running on battery or plugged into a power source.

These settings include things like screen brightness, how long the computer should wait before going to sleep, and what the computer should do when you close the lid.

If your laptop’s power settings are not configured correctly, it can cause the laptop to shut off randomly.

For example, if you are watching a video on your laptop and the power settings are set to turn off the screen or put the computer to sleep after a certain time of inactivity, the laptop might shut off halfway through the movie.

This is because the computer thinks it is inactive and tries to conserve power by shutting down.

To avoid this issue, you need to review your laptop’s power settings and make sure they are set up correctly.

You can do this by going to the Control Panel or the Settings app (depending on your operating system) and selecting Power Options.

From there, you can adjust the settings to suit your needs.

For example, you can change the settings so that the computer doesn’t go to sleep while you’re watching a video, or you can increase the amount of time before the computer goes to sleep.


Fast Startup

Fast Startup is a feature in Windows that allows your computer to start up faster by saving some system information to a file when you shut down.

When you turn on your computer again, Windows uses that information to start up more quickly than it would if it had to load everything from scratch.

However, this feature can sometimes cause problems with your laptop, including randomly shutting off. If this is the case, you can turn off Fast Startup by following these steps:

  1. Open the Control Panel by clicking on the Windows Start menu and typing “Control Panel” into the search box.

  2. Click on the Power Options icon.

  3. Click on “Choose what the power buttons do” on the left-hand side of the window.

  4. If the “Change settings that are currently unavailable” option is grayed out, click on it to make it available.

  5. Scroll down to “Shutdown settings” and uncheck the box next to “Turn on fast startup (recommended).”

  6. Click on “Save changes” at the bottom of the screen.

Once you have turned off Fast Startup, your laptop should no longer randomly turn off due to this feature.

However, it’s important to note that Fast Startup may be beneficial for your computer’s overall performance, so you may want to weigh the benefits and drawbacks before disabling it permanently.

Why Laptop Is Turning Off By Itself (Explained)


Laptops generate heat when they are in use, and if the internal components get too hot, it can cause the laptop to shut off randomly.

Laptops have a built-in fail-safe mechanism that turns off the computer if the components get too hot to prevent damage to the hardware.

One common reason for a laptop to overheat is if there is a buildup of dust and debris in the vents and fans.

This can block the airflow and prevent the fans from cooling the components as effectively as they should.

Even if you can hear the fans running at maximum speed, they may not be able to cool the components enough if they are clogged with dust.

To prevent overheating and random shut-offs, you can clean the vents and fans of your laptop.

You can do this by shutting down the laptop and unplugging it, then using a can of compressed air to blow out the dust and debris from the vents and fans.

It’s important to do this regularly to prevent the buildup of dust and debris and keep your laptop running smoothly.

If cleaning the vents and fans doesn’t solve the overheating problem, there may be other issues causing the laptop to overheat, such as a malfunctioning cooling fan or a problem with the thermal paste that helps transfer heat away from the components.

In these cases, it’s best to have a professional diagnose and repair the issue to prevent damage to the hardware.


Operating System Issues

If your laptop is still turning off randomly and none of the above reasons seem to apply, it’s possible that there are issues with your operating system that are causing the problem.

There are a few different settings or issues within the operating system that could be causing your laptop to shut down unexpectedly:

  1. Automatic updates: If your operating system is set to install automatic updates, it’s possible that a recent update is causing problems with your system. You can check your update history to see if any updates were installed around the time the problem started.

  2. Power settings: As mentioned earlier, incorrect power settings can cause your laptop to shut down unexpectedly. If you’ve recently changed any power settings, try reverting them back to their original settings to see if that resolves the issue.

  3. Malware or viruses: Malware or viruses can cause all sorts of problems with your operating system, including random shutdowns. Make sure your antivirus software is up to date and run a full system scan to check for any infections.

  4. Corrupted system files: If any system files are corrupted, it can cause all sorts of problems with your operating system. You can try running a system file checker to scan for and repair any corrupted files.

  5. Hardware drivers: If you’ve recently updated any hardware drivers, it’s possible that the new drivers are causing issues. Try rolling back the drivers to see if that resolves the problem.

If you suspect that there are issues with your operating system causing your laptop to shut down unexpectedly, it’s a good idea to seek out professional help to diagnose and repair the issue.


So, here is a chart table with 20 scenarios and their corresponding fixes:

OverheatingClean the vents and fans to ensure nothing is blocking them
Battery issuesReplace the battery or check if the battery is properly connected
Power supply issuesReplace the power adapter or check if it is properly connected to the laptop
Operating system issuesPerform a system restore or reinstall the operating system
Malware or virus infectionInstall and run antivirus software to remove the infection
Corrupted system filesRun a system file checker to repair any corrupted files
Hardware driver issuesRoll back or update any hardware drivers that may be causing the problem
Faulty RAMReplace or upgrade the faulty RAM
Hard drive failureReplace the hard drive and restore data from a backup
Overclocked CPUReset the CPU to default settings
Faulty graphics cardReplace the graphics card or update the drivers
Faulty motherboardReplace the motherboard or seek professional help to diagnose the issue
Dust and debris in the laptopClean the internals of the laptop including the fans, heatsinks, and motherboard
Incorrect power settingsCheck the power settings and ensure they are set to the recommended values
Incompatible software or hardwareUninstall any recently installed software or hardware that may be causing the problem
Incorrect BIOS settingsReset the BIOS to default settings or update the BIOS if necessary
Faulty fan or cooling systemReplace the fan or cooling system or seek professional help to diagnose the issue
Driver conflictsUninstall any conflicting drivers or hardware that may be causing the issue
Loose cables or connectionsCheck all cables and connections to ensure they are properly connected and secure
Faulty power button or keyboardReplace the power button or keyboard if they are faulty or causing the issue

Note that some of these scenarios may require professional help to diagnose and repair the issue.


In conclusion, there are various reasons why a laptop may turn off by itself. It could be due to overheating, battery issues, power supply issues, operating system issues, malware or virus infection, corrupted system files, hardware driver issues, faulty RAM, hard drive failure, overclocked CPU, faulty graphics card, faulty motherboard, dust and debris in the laptop, incorrect power settings, incompatible software or hardware, incorrect BIOS settings, faulty fan or cooling system, driver conflicts, loose cables or connections, or faulty power button or keyboard.

To fix the issue, it’s important to identify the root cause of the problem and then take appropriate measures to address it.

This may involve cleaning the internals of the laptop, replacing faulty hardware components, updating drivers, reinstalling the operating system, or seeking professional help to diagnose and repair the issue.

It’s also important to take preventative measures to avoid these issues in the future, such as regularly cleaning the internals of the laptop, checking for software and hardware compatibility before installing new components, and ensuring that the power settings are set to recommended values. By taking these steps, you can help ensure that your laptop runs smoothly and avoid unexpected shutdowns.


  1. Helpdeskgeek

  2. Freecodecamp

  3. Technewstoday

  4. Technize

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