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10 best antivirus software for low-end PCs [2021 Guide]

ESET Internet Security is one of the best antiviruses that you can use. It is a modern antivirus powered by AI, meaning that it adapts and improves itself continuously.

Furthermore, it is a perfect and performant tool for gamers or anyone that want to have uninterrupted sessions of work or gaming at their computers.

Additionally, the software doesn’t need a lot from your computer resources. So, you can watch movies, play, work, and more, but with this antivirus, you won’t experience any slowdowns.

Some of the best features:

  • Compatible with Mac, and Linux operating systems
  • Keeps your PC clean of viruses, worms, ransomware, spyware, and all types of malware
  • Multi-layered technologies 
  • Game Mode, to prevent pop-us while playing
  • Regular updates
ESET Internet Security

ESET Internet Security

Get one of the best modern cybersecurity solutions, that work great even on old PCs.

anti-mining tools

Avast is a worldwide giant in the antivirus industry with hundreds of millions of users worldwide.

Avast incorporates features such as excellent detection of malware and malicious software with real-time protection which makes the antivirus consistently rank among the best in the world.

Avast Free Antivirus features browser protection using specific plugins with just little delays when installing this plugin.

This software competes comparatively well in browser protection especially against malware threats and highlights dangerous links in search engine results while blocking trackers.

In addition, the gaming feature prevents displays of updates or pop-ups that can disrupt users’ gaming experience.

Main features include:

  • A myriad of features available
  • Excellent URL filtering options
  • Ideal antivirus for low specs PC
  • URL filtering and
  • Gaming mode
Avast Free Antivirus

Avast Free Antivirus

A free antivirus solution that will cover all the protection necessities of a home PC

avira for windows 10

Avira Antivirus is one of the popular antivirus software offering free antivirus and is used by millions. This antivirus gives top-notch protection to user’s computers.

The installation of the antivirus is slow and contains lots of advertisements that remind users that they are using free software.

After installation, things get interesting with the user interface opening a homepage consisting of a main window with a slatted menu and panels where users can view the system status.

When clicking on PC protection users can start a scan of the system. Users can also toggle on the real-time protection features and configure the default settings.

However, Avira is slow in running a full scan with each full scan taking about two and a half hours which is far longer than other competitive rivals.

Unlike other antivirus solutions that skip already validated files for subsequent scanning, Avira still validates these same files for every scan meaning that subsequent scans still take more than 2 hours.

Some of the best features:

  • The antivirus gives good independent results when used
  • Very good in blocking malware
  • Quality protection for users with low-end computers
Avira Antivirus

Avira Antivirus

Over 100 million people worlwide use Avira thanks to its great protection but also for its lightness.

Vipre antivirus for windows 10

As threats become more sophisticated and attacks exceed in ingenuity, you need strong protection for your PC even if you don’t have the ultimate configuration.

This is where VIPRE comes in with a promise to have a very low impact on your resources but to pack an impressive punch against any threats.

This awesome security solution defends your PC against ransomware and other emerging threats, viruses, Trojans, rootkits, exploits, spyware, and more.

If you’re in the U.S., VIPRE is your best choice because they offer an award-winning customer service team ready to help you for free.

This clever antivirus software is always on the look for malicious activity, blocking any snooping or any attempts of data theft.

Most important features include:

  • Free premium-level customer support and service for the U.S. residents
  • Top-rated, award-winning protection
  • Easy to install and simple to use
VIPRE Antivirus Plus

VIPRE Antivirus Plus

VIPRE offers intelligent security protection, it’s lightweight and has free customer support for U.S. residents.

bullguard antivirus

BullGuard Antivirus is one of the lightest solutions you can deploy on your PC to keep it both protected from viruses and running fast.

The software has been designed to have a low impact on systems, making it ideal if you’re using it on a low-end PC.

Whilst most antivirus solutions will do a decent job when it comes to catching viruses and malware, what makes BullGuard stand apart are the additional features it offers to its users.

When using a lower spec computer, you might be tempted to use optimizing software or cleaners that will scrub your PC of unwanted files.

Whilst those might have some benefit, you are loading your system with more programs and therefore slowing it down.

BullGuard offers excellent value to its customers by combining all these features in the same package. This means fewer programs and lesser strain on your PC.

To see what else BullGuard can do for you, we invite you to check out our complete review where we discuss the system requirements, the most notable features, and our experience using the software.

As mentioned before, BullGuard focuses on delivering top-notch performance and protection, but sacrifices on shiny and hard to navigate user interfaces.

This way, the developers are passing the savings to you and you still have an antivirus solution that is easy to use.

Moreover, as a sign of how confident BullGuard is of the product, you can try it for 30 days for free with complete functionality.

Here’s a quick peek at what we’ve concluded:

  • Multi-layered protection against malware
  • System optimization
  • Encrypted cloud backup


BullGuard Antivirus will keep your system completely protected against viruses while using minimum resources.


Bitdefender has had the best detection rate for the past 5 years and their solutions are installed on over 500 million systems all over the world.

That’s certainly a very good reason to consider installing Bitdefender Antivirus Plus.

Its Artificial Intelligence and machine learning technologies anticipate, detect, and block all the threats, even the newest ones before they infect your system.

Although it’s a very rich security solution, coming with lots of built-in functions, Bitdefender uses minimal resources from your PC.

Moreover, this antivirus solution features optimization tools that can speed-up your PC’s boot-up time and increase its performance.

Bitdefender Antivirus Plus also has a very sensitive nose for phishing websites. It detects and blocks them even before you get to see their false promises.

Some great features include:

  • AI and machine learning technologies
  • Enhancing system performance
  • Safe online banking
Bitdefender Antivirus Plus

Bitdefender Antivirus Plus

Bitdefender Antivirus Plus is an award-winning solution that has a very low impact on your PC’s resources.

This post was written by Ivan Jenic and was first posted to WindowsReport

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