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Solved:Reasons Why Laptop Suddenly Shuts Down

Often times laptops shuts down abruptly without any pre-information or you shutting it down yourself. Now this is not normal as if it is not taken care of in time, it may lead to further harm than good to such laptop.

Important Notice!

This post is strictly for that turn off and remain off after an extended period of use. It is not for computers that turn back on (restart), computers that shut off immediately upon powering up, or computers that do not turn on at all.


Some of the steps below require you to work inside your computer. Before opening your case, be aware of the dangers of ESD.

You May Also Read : 9 Factors To Consider Before Buying A Laptop

Most Common Reasons Why Your Laptop Is Randomly Shutting Down.

1. Dirty Fan/Overheating

The first thing to do when you notice that your laptop shuts down randomly is to check for dirty fan or overheating.

Most times you may hear an abnormal noise coming from your computer, such as a high squealing sound, this could be an indication of a fan malfunction.

For you to access your laptop fan, you need to open your laptop casing. Mostly the fan is by the left of the power input side.

If you find that the fan in the power supply is not working correctly or at all, and the power supply is very hot to the touch, you may need to replace the power supply.

What causes overheating in laptops or computer?

The first culprit is probably that the fan is not working or is faulty.

Laptops of nowadays are have a built-in mechanism that will shut off your computer if any of the components become too hot. This is a protective mechanism protecting your expensive electronic device.

An overheating power supply, due to a malfunctioning fan or dirty fan, can cause a computer to shut off unexpectedly. Continuing to use the faulty power supply can result in damage to the computer and should be replaced immediately.

Note If your issues are on a laptop, I do not suggest you opening the computer. Instead, verify the fan from the side of the laptop to see if it is working and blowing out hot air. Also, you may get a cooler pad to use with the laptop to help lower its running temperature.


Working on the interior of your machine provides an opportune time to clean the inside. Dust, dirt, hair, and other trapped debris can prevent proper air flow, which may lead to overheating.

Why is my computer shutting down randomly

2. Hardware Failure

When a laptop shuts down abruptly, it can also be caused by hardware failure. When there is a hardware failure, this can make your laptop to unexpectedly shut down.

The hardware to check first are as follows: RAM, CPU, your motherboard, power supply and your video card.

Also, you may have installed a new hardware that may be causing this problem. If you have recently added any new hardware, remove it from the computer to make sure it is not the cause of the problem.

In a situation that you did not add any hardware of such to your laptop, the best thing to do is to remove certain hardware like modem, sound card, vcard and some other non essential hardware that do not affect the operation of the laptop. When you test the computer without these, it may help diagnose the problem.

3. Computer Virus

We all know that computer virus can corrupt  and harm certain things in a computer. If your laptop is infected or having a malware issue, it may cause your laptop to shut down unexpectedly.

The best defense is to install a good anti-virus if you do not have one on your computer. Scan your laptop for virus and see if it fixes the problem. This has been said to help deal with the abrupt shutting down of your laptop.

4. Wrong Charger

This is usually not a common problem but can take effect if you use your laptop in a way that it demands more power that your laptop charger capacity.

Most times laptop charges are rated in power to power your device. Now if you are a video gaming freak (love playing video games), you need to use appropriate charger.

Games require chargers with higher voltage capacities, preferably from 100w to 240w. However most computer users don’t realize this and instead use chargers that are 90 watts or less.

Games demand a lot of power from your computer as they have high graphics and run on high performance. So if you are playing game and your computer shuts down unexpectedly, you need check your charger to see if it supplies the needed power.

Games demand a lot of power from your laptop, especially since they almost always make your fans run at top speed. Don’t forget – a vacuum cleaner hose does a great job at cleaning those laptop vents.

Also you need place your laptop in open or well ventilated (Air-conditioned place will help). Try use the right charger as this can help fix the problem.

5. Problem with UPS or surge protector

Sometimes the culprit can be your surge protector. You may need try connecting to the power outlet directly and check if this fixes the problem.

this resolves your problem, you may have a defective surge protector or UPS.

You may also read : How to fix ‘storage space running out’ problem on Android & Ios

6. Display Driver Crash

This is one major cause of your laptop shutting down suddenly. Sometimes when you change a driver on your laptop, it may cause your computer to suddenly shut down without any prior warning.

crashed laptop screen

If you have tampered with your BIOS, it may cause your driver to crash which in turn may shut down your laptop (computer).

A recent study revealed that AMD display drivers or the AMD Catalyst Suite are two common display drivers that are known to crash occasionally. When your computer starts back up, look to see if you have any dump files at the top of the crash posts.

To determine the driver that crashed, These files will tell you everything you need to know.

7. Problem with Operating system

If you have tried the methods above in troubleshooting the cause of your laptop shutting down suddenly,  it is possible you are experiencing a problem caused by operating system.

A way to see if this is the case, you may try the steps below.

  1. Reboot the computer and enter CMOS setup as the computer is booting.
  2. After you have loaded the computer in CMOS setup, let the computer sit.

If the computer does not turn off after staying idle in CMOS, your operating system installation may be corrupt. It is recommended that you erase everything and reinstall Microsoft Windows. This in some cases means to format your laptop.


The moment you notice that your computer suddenly shuts down without automatically restarting itself, you should know how to and where to troubleshoot using this post as a guide.

Ensure to pay attention to your computer behavior. If it persist, best to do is to let it rest for a while before restarting to see if it is a temporary issue or something continuous.

The steps and causes discussed in this post are tested and trusted to help you with your “Do it yourself approach” And it has been helpful solution to fixing problems of a computer shutting down suddenly.

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