Computer Shuts Down Randomly [Solved]

Camilla Mo, in Common error Tags: Windows

Does your computer keep turning off unexpectedly? Don’t worry. In this post, we’ll show you how to fix this annoying problem. 

The problem can be caused by different issues. So there’re several methods to fix it. Just try the methods one by one until you have the problem solved. All methods apply to Windows 10, 7, 8.1 & 8. 

Method 1: Test with a different power supply

After the computer shuts down, if you can’t turn it right back on, there might be a power problem with the power supply. If possible, try a different power supply and see if the problem persists.


Method 2: Turn off fast startup

Fast startup may be the cause of the abrupt shutdown. So check if it is turned on. If yes, turn it off. Follow these steps:

1. Open Control Panel.

2. View by Large icons and click Power Options.

3. In left pane, select Choose what the power buttons do.

4. Click Change settings that are currently unavailable.

5. Scroll down to the Shutdown settings. If you see option Turn on fast startup is checked, click to uncheck it then click Save changes button.


Method 3: Update motherboard drivers

To fix the problem, you can try to update the motherboard drivers. You can download and install the new motherboard drivers from the PC manufacturer’s website or the motherboard manufacturer’s website. 

If you have difficulty in updating the drivers manually, you can use Driver Easy to help you. Its Free version allows you to update drivers one by one. If you want to save more time, you can go to Pro version, which allows you to update all drivers with just one-click. 


Method 4: Check if the system is overheating

Overheating system is a common cause of abrupt shutdown of Windows. The safe temperature should be 45-50 degrees Celcius. And the maximum temperature should be not over 60 degrees Celcius.

You can check the system temperature in BIOS (Basic Input Output System). But note that not all BIOS will display this information. If you are not sure how to enter BIOS, google with key words “brand name +  enter bios” to find the steps. It’s recommended that you follow the steps in the manufacturer’s website. 

Here takes Lenovo for example:

You can also use a free utility to view the temperature. If you are not sure which utility is good to use, we recommend HWMonitor. It’s produced by CPUZ and you can trust it.

If the temperature is high (over 60 degrees Celcius), you can do below two things to make a change about it.

Clean the computer

Too much dust can cause computer overheating. So try to clean the computer especially the fans and the filter.

Check if fans are running

If the fans stop working, the temperature will be higher than normal. So open the case and ensure the fans are running. If the fans are broken, you might need to replace it with a new one.


Method 5: Update BIOS

You can download and install the new BIOS utility from PC manufacturer’s website. The steps to update BIOS are complicated.You can get the detailed steps on the manufacturer’s website. Just google with “brand name + update bios” to find the instructions.

Here takes Lenovo for example:

Updating BIOS incorrectly can render your computer unbootable. If you are not a computer savvy,it’s recommended you to take your computer to the near repair store to have it fixed.

Hope the methods above help you fix computer shutting down randomly issue.

You are welcome to leave any comments below.

Help Us Improve Article