Why does my PC freeze and how do I fix it? Expert answers

Every computer freezes up from time to time; here's how to fix it

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Computers are complex machines. They sometimes run into issues like any machinery. One common issue many of us face is our computer freezing or becoming unresponsive. 

If you are dealing with a PC that locks up occasionally, don't worry; you're in the right place. 

We'll discuss what causes a computer to freeze and what you can do to fix it and get your computer running smoothly and efficiently again. (Mac users, get these 8 tips to speed up your Mac’s performance.)

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laptop

A man using a laptop  (Kurt "CyberGuy" Knutsson)

Why do PCs freeze up?

PCs can freeze up for a variety of reasons, some related to software and others purely mechanical. Here are a few different reasons your computer might be freezing up.

Insufficient RAM: If your PC does not have enough memory (RAM), running too many programs, or even browser tabs, at once can cause your computer to freeze due to a lack of system resources.

Overheating: If your computer's CPU (central processing unit) or GPU (graphics processing unit) generates too much heat, it might lock up as a preventative measure. Rising temperatures within your PC can cause a shutdown to protect its integrity. Check out our best cooling pads for your laptop by clicking here.

Software or Driver Conflicts: Errors in a program can create conflicts and cause your PC to freeze up. Driver conflicts often create instabilities in your computer's internal system, including freezes. A device driver, such as a USB driver, can also cause a device to freeze if it's outdated, conflicts with another driver or does not work properly.

Hardware Issues: A defective stick of RAM, hard drive, video card or other hardware can cause your PC to freeze.

Corrupt Operating System Files: Corrupt operating system files can cause several problems, including your PC locking up.

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A man working on his PC (Kurt "CyberGuy" Knutsson)

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How to fix a frozen PC

More often than not, a frozen PC is an issue that has simple solutions. Here's a step-by-step guide to help you unfreeze your computer and get it running smoothly again.

Step 1 — Give it a moment

Sometimes PCs appear frozen, but they are actually just slowly processing tasks. Give it a minute or two to see if it resolves itself first.

Step 2 — Check for overheating

Make sure to check that your computer's vents are not blocked and that your internal cooling fans are working properly.

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Computer fans  (Kurt "CyberGuy" Knutsson)

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Step 3 — Close unresponsive programs on your PC

Press Ctrl+Alt+Delete and select Task Manager. From the task manager, you can end any programs and processes using a lot of CPU power. If your Windows desktop, including the taskbar and Start menu, freezes, you can sometimes restart Windows Explorer to fix these problems.

Step 4 — Restart your PC

If the above steps haven't worked, try restarting your computer.

Step 5 — Check for updates and drivers

Ensure that your operating system and all your drivers are up to date. Outdated software can often cause system freezes. By default, Windows will scan your computer's programs and install the recommended drivers for system stability. Make sure Windows Update is turned on for automatic updates.

Step 6 — Run a virus scan

Malware can also cause computers to freeze. We recommend running a full system scan using antivirus software to ensure your computer is malware- and virus-free. The best way to protect yourself from clicking malicious links that install malware that may get access to your private information is to have antivirus protection installed on all your devices. This can also alert you of any phishing emails or ransomware scams. Get my picks for the best 2024 antivirus protection winners for your Windows, Mac, Android & iOS devices.

Step 7 — Free up disk space

If your hard drive is full, it can slow down your PC and cause it to freeze up. In that case, you’ll want to try to optimize your computer's performance by cleaning the files on your computer.

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Images of microprocessors  (Kurt "CyberGuy" Knutsson)

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Step 8 — Install more RAM

If your PC frequently freezes, you may need more RAM. Consider upgrading its memory. Depending on where you are, you can bring your computer into a BestBuy or MicroCenter, and a technician can install the RAM. Depending on which company built your computer, you can also likely send it in for a RAM upgrade.

Step 9 — Restore to an earlier state

Use the Windows System Restore feature to restore your computer to its previous state. Beware, though, that using system restore will restore everything on your PC to its original state on the date you selected. Make sure to back up anything you need.

Is it time for a new desktop or laptop?

If you are working with an older laptop or desktop, it might be time to look at new computers on the market. Our list of the best desktop computers is available here, and our list of the best laptops is available here.

Kurt's key takeaways

It's always a good idea to keep your PC updated and regularly check for potential hardware issues. If any problems related to freezing persist, you might want to consider getting professional help. Remember also to regularly back up your data to prevent any potential losses.

Can you share a "computer freeze" horror story and the lessons it taught you about computer maintenance?  Let us know by writing us at Cyberguy.com/Contact

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Kurt "CyberGuy" Knutsson is an award-winning tech journalist who has a deep love of technology, gear and gadgets that make life better with his contributions for Fox News & FOX Business beginning mornings on "FOX & Friends." Got a tech question? Get Kurt’s free CyberGuy Newsletter, share your voice, a story idea or comment at CyberGuy.com.

Authored by Kurt Knutsson, Cyberguy Report via FoxNews April 27th 2024