14 Computer Myths You Probably Still Believe

Even in 2024, tech myths are still alive and kicking! I’m here to help you separate fact from fiction so you can keep your computer running smoothly and avoid unnecessary stress. Here are 14 myths people still believe about computers—and it’s time to let them go!

Here are some questions I hear often that this post answers:

“Why is my laptop battery not lasting as long as it’s supposed to?”

“Do I really need to upgrade to the latest version of Windows to stay safe?”

“If I delete a bunch of files, will my computer run faster?”

“Can a hacker actually go after me even if I don’t have anything valuable?”

“Will buying a new computer fix my problems with slowdowns and viruses?”

Myth #1: A Slow Computer Means I Have a Virus

When my clients tell me their computer is running slow, their first worry is usually a virus. But here’s the truth: slow performance is rarely just about malware. Sure, a virus can slow things down, but it’s more common for a computer to get sluggish over time because of overloaded startup programs, outdated software, or a nearly entire hard drive.

Usually, a virus will cause more apparent signs—like weird pop-ups or new programs opening independently. If you’re dealing with slowdowns, start by disabling unnecessary startup programs, clearing out temp files, and updating your system before jumping to conclusions.

Myth #2: Macs and Linux Machines Don’t Get Viruses

For a long time, it was confirmed that Macs and Linux systems were much less likely to get viruses. However, as these platforms have grown in popularity, hackers have taken notice.

Macs and Linux computers are not immune—malware also targets them, especially as more users rely on these operating systems. I still recommend antivirus software and regular updates on every system, whether it's a Mac, Linux, or Windows PC. Better safe than sorry!

Myth #3: Computer Repair Has to Be Expensive

I get it—computer repair sounds costly, but it doesn’t have to be. In my experience, repairs can get pricey when people walk into a big box store without even a basic understanding of their issue, and fall victim to upselling. Knowing the issue and whether it’s likely a hardware or software problem can save you a lot of money.

Many minor issues can be fixed at home, like reinstalling drivers, running antivirus scans, or simply updating software. Knowing a few basics makes you much less likely to pay for things you don’t need. Check out my many blog posts for help with various "Quick Tips".

Myth #4: I Don’t Have Anything a Hacker Wants

Many people believe they’re not a target for hackers, but I always tell my clients that everyone has something hackers can use. Hackers don’t just go after big money or “important” people but also enjoy exploiting everyday details.

Your email, social media accounts, and even simple personal information can be valuable. Hackers might use your computer to send spam or launch other attacks in combination with many other computers. I always say: assume you have data worth protecting and use strong, unique passwords and two-factor authentication (2FA) on everything.

Myth #5: Good Software Always Costs Money

When people think good software has to cost money, I love showing them the free alternatives. Open-source and free software have come a long way, and many programs can handle what you need without costing a dime.

For instance, Photopea is a great free alternative to Photoshop, and LibreOffice or Google Docs can do almost everything Microsoft Office does. Some of the best software I use daily costs nothing, and I often recommend these programs to my clients.

Myth #6: Turning Your Computer Off Will Make It Last Longer

This one always brings me back to old-school computer advice! Turning your computer off at night doesn’t necessarily make it last longer. Modern components are designed for long hours, with many parts rated to run thousands of hours without a hitch. I typically restart my computers about once a week for good measure. This tends to keep things running smoothly for me.

In fact, constantly turning a computer on and off can stress some components, like the hard drive. I tell clients it’s fine to leave their computer on if they want, but a quick reboot every few days can help refresh things and install updates.

Myth #7: Extended Warranties Are a Waste of Money

I used to be on the fence about extended warranties, but I’ve seen how helpful they can be when it comes to computers. Most are a waste of money, and basically act like an insurance policy that you'll probably never use, and it's tied to that particular store. Don't get one for 5 years out or something.

Most warranties cover you for only a year, but in my experience, issues tend to pop up in the first two years. Spending a little extra for a longer warranty can save you from an expensive repair bill later on, especially if parts start wearing out after the standard warranty expires.

In terms of typical minor repairs, paying a local computer shop or a home business like mine provides better value.

I have purchased my computers through Memory Express for nearly 20 years and STRONGLY recommend their In-Store Product Replacement (IPR) warranty. They are fantastic.

Myth #8: Your Laptop Battery Will Last as Advertised

Battery life is funny—it always depends on how you use the laptop. If browsing the web or editing documents, you might get close to the advertised life. But if you’re doing something heavy, like gaming or video editing, that “three-hour battery” might last only an hour.

I’ve found that adjusting screen brightness, closing unnecessary programs, keeping startup items to a minimum, and enabling power-saving modes can make a big difference if you’re trying to get the most out of your battery.

Myth #9: Leaving Your Laptop Plugged In Destroys the Battery

It’s true that battery technology has improved a lot over the years. Nowadays, modern lithium-ion batteries are designed to handle being plugged in most of the time. I still recommend letting the battery discharge occasionally, but if you mostly work at a desk, there’s no harm in keeping it plugged in. I just remind people to avoid keeping the battery at 0% or 100% all the time if possible.

Myth #10: Refurbished Computers Are Junk

I’ve seen so many people avoid refurbished computers because they assume they’re poor quality, but I’m here to tell you that they’re often a fantastic deal. Refurbished or renewed computers go through rigorous testing and repairs to ensure they meet quality standards. In many cases, they work just as well as brand-new models—and often with warranties. I do advise people to check the warranty details, but a reliable refurbished computer can save you a lot of money.

Myth #11: I Need to Upgrade My Windows OS to Be Safe

Upgrading to the latest version of Windows can be a good idea, but it’s not always necessary. Older versions, like Windows 10, can be safe enough with the right habits for people who just use their computers for simple tasks. For example, Windows 10 will receive security updates until 2025, and paid updates will be available for at least a year after that, so you’re still covered. Of course, if you handle sensitive information or want extra security features, upgrading can provide extra peace of mind.

Myth #12: Deleting Files Will Make My Computer Run Faster

It surprises me how many people think deleting random files will speed up their computers. Deleting a few files won’t make much of a difference unless your hard drive is almost full. Windows needs space for temporary storage, so it’s best to keep your drive at about 50-60% capacity. If your drive is getting full, moving large files to an external drive or cleaning up temp files can free up space without impacting performance.

Myth #13: Using the Power Button Will Damage My Computer

People worry about using the power button to shut down, but it doesn’t actually damage hardware. The real risk is that shutting down abruptly can corrupt files if you do it while programs are running. I’ve done it a few times in a pinch when my computer froze, but it’s always best to use the shutdown menu to avoid boot issues and data corruption. If you do need to force it off, just be prepared to run a system check on reboot, which is usually automatic.

Myth #14: Reinstalling Windows Means Buying a New License

Good news here—Microsoft ties your Windows license to your computer’s hardware, so reinstalling Windows doesn’t mean you’ll lose your activation. If you have a legitimate copy of Windows, it’ll automatically reactivate when you reconnect to the internet. If you make significant hardware changes, like replacing the motherboard, you might need to reach out to support, but there’s no need to buy a new license.

Bonus Myth: A New Computer Will Fix All My Problems

Here’s one that might sting: getting a new computer won’t fix bad habits. If you’re constantly running into problems like viruses or sluggishness, a new machine isn’t make them magically disappear. Often, these issues stem from unsafe browsing habits or risky downloads. I always tell people that safe browsing habits and regular maintenance will keep any computer running smoothly—new or old.

So, which myths surprised you? Let me know in the comments, and remember these tips to avoid tech troubles in the future!

In Conclusion

So there you have it—my take on some of the biggest computer myths that still trip people up! I get how easy it is to fall into these beliefs, whether it’s thinking you need to delete files to make your computer faster, or worrying that leaving your laptop plugged in will ruin the battery.

Over the years, I’ve seen how small habits, like keeping software updated and understanding what really causes slowdowns, can make a huge difference in keeping your computer running smoothly.

For me, it all comes down to forming good habits and learning a few basics. I’ve learned that small steps, like managing startup programs, choosing the right software, or knowing when a repair is really needed, add up to a much more enjoyable experience.

Whenever things go wrong, I remind myself not to get intimidated—sometimes, a quick Google search or reaching out to a tech friend is all it takes to find a simple solution.

I’d love to know if any of these myths surprised you, or if you have any other tips or tricks you swear by. Contact me via my website. I’m always interested in hearing about what works (and what doesn’t) for others!