Home Did you know ? 5 Best Lightweight Free Antivirus for Windows 10

5 Best Lightweight Free Antivirus for Windows 10

by Mic Johnson

Are you worried about how you lost your essential documents from your system? Then maybe it was due to the viruses that corrupted data on your computer. Hence, comes the need for having an antivirus software which makes your online surfing safer than before. It will protect your data from corrupted files and lessen the threat of your online identity from being hacked.

Well, these antivirus programs also de-clutter cached threats and consequently speeds up your system. But these programs have the capability of slowing down your PC as well! It happens because a significant amount of computer memory and hard disk space is used up by antivirus programs. Hence, the notion that an antivirus can never put you at a disadvantage is not pragmatic. But surely there is a way out for it. There are certain lightweight antivirus that uses less computing resources and won’t slow down your system.

What do you mean by Lightweight Antivirus?

And here the question arises, what do I mean by lightweight antivirus? The answer is simple; these antivirus programs provide all the benefits without taking up a lot of space. A Lightweight antivirus demands lower megabytes of your hard drive and takes very less time for installation. It requires low RAM during virus scans that guarantee total protection without any interruption. Be it fast installation or fast scanning; lightweight antivirus does all this without putting much burden on your device.

What to look for in an antivirus software

There is a plethora of options for antiviruses for you in the market. That’s the tricky part, which one to choose? What to look for while selecting the best antivirus for your PC?

  • Complete protection- While looking for the right security product, you should not only focus on antivirus protection. Overall protection against cybercrime, ransomware, adware, and so on, should also be checked while choosing an antivirus program.
  • Reliability – It is one of the most critical factors while choosing an antivirus. The program should offer automated time-to-time security scans. If there is another security program on your device, then look for an option that protects without causing conflicts.
  • Ease in use- A good antivirus is the one that is easy to use, especially if you’ve little or no technical knowledge about security. Easy navigation, understanding, documentation, and complete control increase the preferability of an antivirus.
  • Reputation- Reputation of the company matters; it is something that you cannot ignore. No matter how conservative or old school it may sound, always go for a well-reputed company for your antivirus.

5 Best Free Lightweight Antivirus

Luckily, there are lighter antivirus programs available. And to make that task a bit easier for you, we are here with the five best Lightweight Free Antivirus for Windows 10:

  1. AVIRA

It is developed by a German company that ensures that your device and data are safe. It supports Mac and Windows operating system. This lightweight antivirus without causing a disturbance in your surfing or downloading runs silently in the background. It scans and removes viruses or any threats at regular intervals. Avira even prevents adware and spyware from your device to ensure safe browsing.



Developed by a Romanian company, Bitdefender Antivirus has various features that make it preferable. It protects your device against malware. Fast installation and fast scanning lead to faster performance of your device. Its anti-fraud and anti-tracking feature, along with the ease in use, makes it entirely trustworthy. It provides supports for Windows, Mac, and even for individuals using Linux. It is worth mentioning that there is a free built-in antivirus program that comes with your licensed windows software called Windows Defender. However, a paid antivirus offers a lot more protection for your PC. To understand the benefits you should read about Windows Defender vs Bitdefender. Also, it is the best budget Antivirus in case you wish to upgrade to the premium version. You can get Bitdefender discounts at a very reasonable price.



The program secures your device against viruses, infected files, and suspicious sites without slowing down your device. It works smoothly on Windows, Android, iOS, and macOS. It exactly knows when to alert you and when to block suspected threats. Using your invisible VPN, you can conveniently and privately browse in public. With Kaspersky, get rid of all the viruses, malware, ransomware, and other probable dangers.


  1. AVAST

This lightweight antivirus turns out to be your savior against viruses, ransomware, malware, etc. in real-time. Well, it not only prevents viruses but also creates a tough time for hackers. Hackers won’t be able to steal your data from your device with Avast installed in it. You can permanently shred any private or confidential data and prevent other people from recovering it. Interesting, isn’t it? It supports Windows, Mac, and even Linux operating systems. You can always get the best price online with Avast promo codes.



This security system fights against unwanted and intrusive viruses. Under its Default Deny Approach, Comodo antivirus, by default, prevents the entry of harmful files into your system. There are two ways to use it, advanced or basic mode as per your knowledge and convenience. Comodo’s user-friendly interface adds a cherry on the cake. It supports Windows and macOS.


Why choose a lightweight antivirus

The above-mentioned antivirus programs are an excellent choice for users looking for lightweight applications. But what makes lightweight antivirus programs better than the rest?  Well, you can avail of the benefits of lightweight antivirus even on your old and low configuration devices. Its seamless and automatic updates, small installation agent, low RAM usage are enough to get you an advantage over the traditional one. And if you are a game fanatic, then there is no more reason to avoid an Antivirus.


Whether to go for a lightweight antivirus or a traditional one lies in the hands of users. But the fact that nobody enjoys working on a slowed-down device can’t be denied. If you are frustrated with your security programs slowing down your PC at work or while playing games, then Lightweight antivirus programs are for you.

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