PC Turns Off Randomly But No Overheating: Causes & Fixes!

PC Turns Off Randomly But No Overheating

Are you trying to get a task done, but the PC turns off out of nowhere? It can be frustrating to experience the situation. However, what’s more frustrating is not knowing why it is happening. Usually, when something like this happens, it is blamed on common problems like overheating. However, what to do when the PC turns off randomly without overheating?

You see when a CPU is working above its capacity, it is bound to emit a lot of heat, and to ensure that it does not overheat or damage itself, power cutoff mechanisms are set in place. Hence, it is understandable when the PC turns off due to overheating. However, things go out of control when the issues appear, even when the PC is not overheating. 

So why does it happen? More importantly, what can be done to fix the issue? Well, that is what we are going to discuss in this post! Keep reading if you have also encountered a situation where your PC turns off without overheating.

What causes the PC to turn off randomly (with no warning) and not Overheat

A PC that shuts down randomly out of nowhere can be extremely frustrating. However, it is crucial to identify what is causing it to turn off. When the most common issue of random shutdowns (overheating) is out of the way, a few other things might be causing the issue. These are – 

  • OS/System Files Error
  • Outdated Drivers
  • Software Glitches 
  • Issues with Power Supply
  • Hardware Problems 
  • Overclocking Your PC
  • Viruses & Malware Attacks

Not all these issues turn off your computer individually, but they contribute. The issues can also be identified while using the PC, and the performance is affected. You can try to use your PC at its peak performance, and you may see multiple glitches that appear out of nowhere. Fortunately, several fixes will assist you in fixing the issue and stop your PC from shutting down randomly. Check out the next section to find your solution.

Ways to Fix PC Turns Off Randomly Not Overheating Issue

Fix 1 – Turn Off Fast Boot

Step 1 – Open the start menu and search for Control Panel.

control panel

Step 2 – After opening the Control Panel, change the view to small icons.
Step 3 – In the available options, look for Power Options.power options
Step 4 – Click the “Choose What Power Buttons Do” option from the left pane.
Step 5 – After opening the options, click ” Change the currently unavailable options.”choose power button

Step 6 – From the options below, uncheck the Fast Boot option.

power button and settings
Step 7 – Save the changes and exit. 

After you have turned off the fast boot on your computer, you may encounter a slow boot time; however, this is worth it as the random shutdowns can be easily prevented through these steps. If the issue persists, try other fixes as well!

Fix 2 – Check Your PC for Malware & Virus

Step 1 – In the start menu, search for Windows Security.

search for Windows Security

Step 2 – Open the security wizard to find all the current security options.
Step 3 – Click on Virus and Threats to find the overview of security on your PC.

Virus and Threats Protection


Step 4 – Click on the Quick Scan button to initiate a search for suspicious files.

Quick Scan button in current threats
Step 5 – After you have run a scan, ensure that no infectious files are present on the PC. 

You can also find the antivirus software you use in the Windows Security options. Hence, make sure you run a scan using your licensed antivirus software as well. 

Read Also: Fix – Computer Stuck on Restarting

Fix 3 – Check for Hardware Errors & Faulty Connections

Step 1 – Check your power cable for nicks and cuts. Ensure that it is intact and in good condition.
Step 2 – Check the cables’ connectivity with the power source and CPU. The connection should be perfect on both ends.
Step 3 – Ensure you use the necessary power supply and source. Power your PC with the required voltage for an uninterrupted experience.
Step 4 – After you are done with preliminary checks, you can open your PC cabinet or back panel if you have a laptop. (Only if your skills allow you to)
Step 5 – Check all the internal connections, such as your RAM placement, GPU cables, Power supply connections, etc.
Step 6 – Ensure that your PSU is plugged in properly.
Step 7 – If the PC is shutting down after you insert a flash drive or connect a peripheral device, remove it instantly. 

After checking all the connections, you may be able to identify the loophole in your PC’s power and why it keeps randomly shutting down. Needless to say, you can always reach out to a professional to get the hardware checked. 

Fix 4 – Check System Files For Errors

Step 1 – From the Start Menu, navigate to Command Prompt.

command prompt

Step 2 – Run the Command Prompt as Administrator for complete access.
Step 3 – Use the command SFC/Scannow to initiate a system file check on the Command Prompt.

type sfc /scannow hit enter

Step 4 – Wait for the process to finish; do not close the CMD window.
Step 5 – After the SFC scan is successful, restart your computer.

After the restart, your PC should behave fine. Move to the next fix if the PC still shuts down without overheating.

Fix 5 – Update Outdated Drivers

Step 1 – Download the Advanced Driver Updater. 

Step 2 – Use the Start Scan Now Button in the app to scan for outdated drivers.

start scan using advanced driver updater

Step 3 – Click on Update All to get over with the process. 

When you use a PC without outdated drivers, the PC often starts acting weird. Random shutdowns can result from system drivers not working as they should. Advance Driver Updater offers the easiest way to update outdated drivers. If you don’t know how to update drivers on Windows, you can simply follow these 3 steps and get over with the process. 

Before using a driver updater, you should know the features that should be in the tool.

Fix 6 – Run Memory Diagnostic Test

Step 1 – Go to the start menu and search for Memory Diagnostic.

Searching for Windows Memory Diagnostic

Step 2 – Open Windows Memory Diagnostic from the search result.

windows memory diagnostic
Step 3 – Click on Restart Now.. and the PC will restart.
Step 4 – Let it Finish the memory diagnosis before it boots up

After checking the above factors and fixes, memory is the only thing left to check. Using the Windows Memory Diagnostic tool allows you to check your PC’s memory, which is often responsible for random shutdowns that your PC experiences. 

Besides these fixes, you should ensure the boot sequence is correct and the BIOS is updated. Keep in mind that it is crucial to have an updated OS as outdated Windows is often a cause of PCs shutting down randomly. 

If you use an overclocking tool on your PC, open it again and change the settings to default. Usually, overclocking is used to enhance the performance of available resources; however, when it is not done correctly, it may cause issues. 

Try these fixes; if they do not work, you might have a severe issue. Reach out to a hardware expert to get things sorted. Hope all of it helps you out. Thanks for reading, good luck!

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About The Author

Dishank Sharma
Dishank Sharma

A creative tech-writer who loves to explore latest tech-trends & convey them to his readers in the simplest way possible. He loves to blend the crispness of technology with a pinch of creativity while curating best practices for the readers. In his free time, he likes to scribble poetry, listen to rap & travel.

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