Learn how to prevent your PC from overheating with these quick and straightforward methods.
How to Resolve an Overheating CPU
Ensure that the interior of your PC is free from dust, as dust buildup can lead to overheating. If you notice any airflow issues, address them promptly. It's also essential to apply the correct amount of thermal paste between the CPU and the heatsink. Lastly, perform a malware scan to check for any viruses contributing to the overheating.
Steps to Follow
Turn Off Your PC to Allow It to Cool Down

If your PC becomes too hot, turn it off. When you receive a CPU temperature warning, try powering down your computer and letting it cool. This can help alleviate the problem, but if overheating is a recurring issue, you'll need to address the underlying cause to prevent further overheating of the CPU.
Properly Position Your PC

Ensure your PC is positioned correctly. If your PC is in an unsuitable location in your room or office, it could overheat. Here are some tips:
- Keep your PC out of direct sunlight. Place it in a cool, shaded area (like under your desk). If you must place your PC in a bright area, use curtains to minimize sunlight exposure.
- Position your PC on a flat surface. Avoid placing it on carpet, as the fibers can obstruct airflow at the bottom of the case. If carpet is the only option, consider getting a PC tower riser stand.
- Ensure proper airflow around the case. Don't stack items on top of your computer, as this can block fans. If your PC tower is inside a desk cabinet, make sure there’s sufficient space around the case for heat to escape and that the back of the cabinet is open for airflow.
Enhance Your PC's Performance

Keep your PC well-maintained and updated to avoid unnecessary strain on the CPU. A strained CPU can overheat more quickly. Here are some tips for keeping your PC clean and efficient:
- Regularly update your software and operating system. Using outdated software can degrade your PC's performance over time, putting extra strain on your CPU.
- Avoid running resource-intensive software unless necessary. Depending on your CPU’s power, running multiple demanding programs simultaneously—like graphic design or video editing software (e.g., Photoshop or Premiere), modeling tools (e.g., Maya or 3ds Max), or heavy video games (e.g., Civilization V or Minecraft)—can cause overheating.
- Close unresponsive programs. If a program freezes, it may consume excessive resources. It's better to close it and reopen it if needed.
- Close unnecessary browser tabs and programs. Keep your PC uncluttered by shutting down programs you aren't using, and make sure to completely close them via Task Manager if they remain active in the background. Also, close browser tabs that aren’t in use and bookmark pages you want to return to later.
Activate Power Saving Mode

Enabling power-saving settings can help keep your PC cooler. By reducing power consumption, your computer generates less heat, which may prevent overheating. To enable power saving, follow these steps according to your operating system and device:
- Windows 10 laptop: Click the battery icon on the taskbar and slide the Power mode slider all the way to the left (best battery life).
- Windows 11 laptop: Go to Start > Settings > System > Power & battery and choose Best power efficiency under "Power mode."
- Windows 10 & 11 desktop: Open the Control Panel, click Power Options, then expand "Hide additional plans" and select Power saver.
Clean the Interior of Your PC

Open your PC case and clean the interior. Over time, dust accumulates inside your PC tower. When dust clogs the CPU cooler or fans, it hampers airflow and reduces cooling efficiency. This can lead to overheating of your CPU.
- Use a can of compressed air to remove the dust from your PC tower. Focus on cleaning the fans located at the front, back, bottom, and top of the case, as well as any heatsink fans at the top (if present).
Run a Malware Scan

Use antimalware software to detect and quarantine harmful programs or files. Malware can sometimes cause your PC to overheat. To resolve this, run antimalware software to identify and remove any viruses or malicious files from your system.
- You can use Windows Defender, which is built into your PC, or try third-party options like Kaspersky, Malwarebytes, or BitDefender.
Inspect Your Cooling System

Ensure your cooling system is functioning properly. If your case fans or CPU heatsink are not operating correctly, your computer may overheat. Verify that all your fans are running and properly connected to the motherboard. Also, check that the CPU heatsink is securely attached to the CPU.
Evaluate Your Case's Ventilation

Arrange your case components to improve airflow. A small case with large components can make airflow difficult. Keep your cables organized to prevent airflow issues.
- If airflow problems persist, you might want to consider upgrading to a larger case.
Replace the Thermal Paste on Your CPU

Remove the heatsink and apply fresh thermal paste. Using too much or too little thermal paste can cause overheating. If you removed your heatsink for any reason and need to reapply thermal paste, make sure to use the proper amount.
- To remove the old paste, use rubbing alcohol and a tissue or cotton swab to clean the surface. Let both the CPU and heatsink dry. Then, apply a pea-sized amount of thermal paste in the center of the CPU, place the heatsink on top, and secure it with screws.
Consider Replacing Your CPU or Heatsink

If all else fails, it may be necessary to replace your CPU or heatsink. One of these components could be damaged, or perhaps an issue that was always present has become more noticeable now.
- Ensure that the new CPU and heatsink are compatible with your motherboard and computer case. If possible, try to purchase the same CPU and heatsink that were originally in your system to ensure compatibility.
Consult a Professional Computer Technician

Reach out to a nearby computer repair shop for assistance. If you've tried all other solutions without success, a professional technician may be able to identify the issue more efficiently by inspecting your PC in person.
- To find a reputable repair shop, use your preferred search engine. Look for businesses with positive reviews, or ask friends and family for recommendations.
- If you're dealing with a laptop and encountering a CPU over-temperature error, visiting a repair shop is likely your best option. Laptops are often tricky to fix yourself since the parts are not always easy to access or replace.