5+ best lightweight antivirus software for old PCs
- Older PCs have special requirements when it comes to antivirus tools, such as low CPU power.
- Because of that, we've compiled a list of the best premium antivirus tools for old PCs.
- We've included entries such as BullGuard, Avast, Webroot, ESET, and other popular antivirus tools.
- If you want to try out the software before you buy them, know that many include free trials.
Do you want an antivirus for your old PC? Well, today we will be discussing the best antivirus for old PCs.
Antivirus software has become vital in this age of web surfing as computers need protection from Internet-based malware and other offline threats.
This can pose problems with PC users of older Windows OS such as Windows Vista, Windows XP, Windows 2000, Windows NT, etc. However, there’s still antivirus software for Windows XP Service Pack 3.
Although the obvious choice should be to replace such PCs, sometimes people get attached to them more closely than other devices with years of data stored. So they keep their old PCs and continue using it.
However, most of the latest editions of popular antivirus may not run properly due to the PC outdated specs.
Meanwhile, we have compiled some of the best antiviruses that run efficiently on older PCs with a focus on their functionality and effectiveness.
Which is the best antivirus for old PCs that I can get?
ESET NOD32 Antivirus
The top lightweight solutin on the market for low-end PCs is ESET NOD32. When it comes to resource consumption, an older PC might not hold up with the stress caused by a demanding antivirus software.
Antiviruses are known to take a tool on the system they’re installed in, especially when doing thorough scans.
Thankfully, ESET is able to manage your system, protect it, remove malware, and perform periodic scans without affecting it’s performance.
The Advanced memory scanner feature will decrypt, analyze files and monitor malicious behavior through a specialized algorithm that doesn’t sacrifice CPU power to run.
ESET NOD32 Antivirus
Keep your old PC secure with ESET NOD32 Antivirus, the most lightweight and up to date software.Avast Free Antivirus
Avast is a worldwide giant in the antivirus industry with hundreds of millions of users worldwide.
If you want an efficient antivirus for your old PC, look no further with Avast Free Antivirus. Moreover, it is compatible with all Windows OS.
This tool comes with features such as file scanner, Windows Explorer context menu integration, Rescue Disk, password manager, junk file cleaner, Wi-Fi inspector, Game Mode, and browser cleaner.
In addition, Avast Free Antivirus comes with web, behavior, and mail shields. You can download the software from the official website.
Avast Free Antivirus
Protect your outdated PC with Avast Free Antivirus, one of the best lightweight apps on the market!Avira Antivirus
Another great and free option on our list is Avira. The software performs very well on older PCs ,and it’s proven to be one of the best antiviruses currently.
You will be able to perform thorough scans of your computer without encountering any problems. Besides that, Avira can also help improve your PC’s performance by removing unwanted files.
The file remover will clean your PC of unnecessary junk files and bloatware and make it run faster.
Avira will also protect your from suspicious websites and keep your identity private. To top it all off, it also includes a free VPN for extra safety.
Avira Antivirus
Lightweight and fast, Avira will protect you from current and new threats.BullGuard
Independent tests have shown that BullGuard is capable of detecting a wide variety of malware.
The antivirus relies on virus signatures to detect existing known threats. It also provides behavior analysis that manages to block any suspicious activity from the software running on your computer.
This is part of their multi-layered protection approach. Other layers include a spam filter, backup capabilities, and more.
More proof that Bullguard cares about performance is the addition of Game Booster – an award-winning tool that blocks interruptions.
While you might not be using your computer to play games, it just goes to show that BullGuard is the right choice.
With a clean design, it’s very easy to use and lightweight enough. It requires a minimum of only 1GB RAM and is compatible with Windows 10.
BullGuard
BullGuard is a top antivirus that offers lightweight protection. Perfect fit for old PCs such as yours.Kaspersky Internet Security
Kaspersky Antivirus is one of the widely used antivirus software in the world which gives protection against malware.
The Antivirus uses a layered defense posture to scan your system quickly without giving false positives.
It is also compatible with older versions of Windows OS including Windows XP and Vista which makes it a good choice for users with older PCs.
This program include file scanners, software uninstallers, gamers’ mode, ransomware decrypter, system restore, virtual keyboard, cloud protection, browser configuration, rescue disk, etc.
In addition, one of the unique features of Kaspersky is that it requires 512mb Ram and 480mb disk space to run.
This makes it a great option for older PCs especially PCs which have 1GB Ram and slower processors.
Kaspersky Internet Security
Award-winning security from a well-known provider in the security field for over 20 years.360 Total Security
This software is efficient especially on old PCs so as to give protection against viruses, malware and Trojans.
360 Total Security has the unique advantage of being compatible with all versions of Windows from Windows XP to Windows 10.
This program offers three major protection features which include Internet browsing, Privacy, and System Protection.
This makes it an attractive security tool for older PCs as it would install properly while giving premium functionality and protection.
However, this antivirus utilizes a lot of PC resources, especially when conducting full scans and trying to do other things with the PC.
There is a distinct reduction in system performance for laptops not having more than 1.5 GB of free memory.
360 Total Security
Older PCs need special kind of care in terms of what antiviruses can provided, and 360 Total Security can offer it.Webroot Secure Anywhere antivirus
Last but not the least; Webroot Secure Anywhere is a web-based antivirus for your old PC.
This antivirus incorporates premium security features in a tiny little package; hence, little computer resources are utilized while providing excellent protection to your old computer.
Webroot Secure Anywhere is a unique Security software that integrates firewall, web filtering, and Internet security into one package.
The activation adds a password manager as well. In addition, this tool has very good detection rates for malware and virus threats with anti-phishing features.
Webroot Secure Anywhere
Give your old PC a modern-day antivirus to protect it. Choose Webroot as your go-to security system!SecureAPlus
This is a web-based antivirus program that combines major antivirus programs together. SecureAPlus is ideal antivirus software for users of old PCs that can decide on an antivirus.
In addition, it gives access to multiple antivirus engines. As it is mostly cloud-based it does not put much stress on your computer’s resources.
SecureAplus gives you the opportunity to test the products with features such as real-time protection, detection ratio, firewall, anti-phishing, scan speed, and resource consumption.
However, SecureAPlus is cloud-based and integrates 12 popular antivirus engines into one with a customizable interface for trusted programs.
The antivirus engines include AVG, Avira, BitDefender, ClamWin, ESET, Emsisoft, McAfee, Microsoft Security Essentials, Norman, Quick Heal, Sophos, and Total Defense.
Do share with us your experience in using any of the antiviruses for old PC which we mentioned above. We do appreciate your feedback when you comment below.
Please keep in mind that these tools are also recommended for the following use cases:
Protect your PC now!- Antivirus for very old PC – Some of the tools have such low system requirements, that they qualify as very old computers.
- Best antivirus for old slow XP PC – Some really old PCs keep using Windows XP. While the OS is not recommended, take a look at antivirus for Windows XP.
- Best free antivirus for old laptop – Some of the solutions presented also offers a free version that has limited functionality. You could use that before upgrading to the premium edition.
Frequently Asked Questions
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A computer should not have multiple antiviruses software running simultaneously. Remove the current antivirus first, and turn on the new one. Use a third-party uninstaller in case of issues.
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Any piece of software that runs continuously will slow down the PC a bit. By how much? It really depends on the software. Some solutions are more lightweight than others. Check our top lightweight protection tools.
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Only one antivirus should be up and running. This is true for any computer, new or old. One good antivirus is enough to get the job done.
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