5 best antivirus tools for your old PC that won’t slow it down

Ivan Jenic
by Ivan Jenic
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antivirus old pc

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.

Sometimes, people get attached to PC more closely than other devices with years of data stored and kept in their old PCs; hence, the obvious choice should be to replace such PCs.

However, most of the latest editions of popular antivirus may not run properly due to the PC outdated specs.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 antivirus that runs efficiently on older PCs with focus on their functionality and effectiveness.

Best antivirus for old PCs to use in 2018


Avast Antivirus (recommended)

two-way firewall avast

Avast Antivirus 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 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, behaviour, mail, and web shields.

You can download Avast Antivirus software from the tool’s official webpage.

  –    Get now Avast Antivirus


Kaspersky Free Antivirus (suggested)

two-way firewall Kaspersky

Kaspersky Antivirus is one of the widely used antivirus software in the world which gives protection against malware. The Antivirus uses 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.

Some of the features of this program include file scanner, software uninstaller, gamers’ mode, ransomware decrypter, system restore, virtual keyboard, cloud protection, browser configuration, rescue disk, etc.

In addition, one of the unique feature 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.

    –  Download now Kaspersky Antivirus here


360 Total Security


antivirus for old pcThis software is efficient most especially on old PCs so as to give protection against viruses, malware and Trojans. 360 Total Security has a unique advantage of being compatible to all versions of windows from Windows XP to windows 10.

This program offers three major protection features which includes 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, most especially when conducting full scan and trying to do other things with the PC. There is a distinct reduction in system performance for laptops not having up to 1.5 GB of free memory.

Download 360 Total Security from the official website




antivirus for old pcThis 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.

SecureAplusgives you the opportunity to test several product before deciding the product that fits your priorities with features such as real-time protection, detection ratio, firewall, anti-phishing, scan speed, and  resources consumption.

However, SecureAPlus is cloud based and integrates 12 popular antivirus engines into one with 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.

For more information, visit SecureAPlus official website.


Webroot Secure Anywhere antivirus


antivirus for old pcLast 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 password manager as well. In addition, this tool has very good detection rates for malware and virus threats with anti-phishing features.

Download Webroot from the official website

Do share with us your experience in using any of the antivirus for old PC which we mentioned above. We do appreciate your feedbacks when you comment below.