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Best and Lightest Antivirus Software for Slow Pc

Updated on July 20, 2015
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I grew up in Vietnam and studied economics. I worked at an security firm from 2011 to the present and I enjoy technology and computers.

Nowadays, on the Internet, there are many articles which give suggestions on various anti-virus software for computer with low configuration. Typically, the author of this article is based on the calculation of RAM, CPU, when we install and use antivirus software.

The following article will give you more innovative approaches. It is based on the experience of user who have used a computer with low configuration for four years. And I believe that it will give you the best choice.

5 out of 5 stars from 1 rating of Panda Cloud Antivirus Pro

Picture for older computers

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My laptop

Before beginning this article, I would like to introduce the configuration of my laptop.

Model: The HP Presario 2200

RAM: 512 MB

CPU: Intel Celeron M / 1:40 GHz

Hard Drive: 40 GB

Operating System: Windows XP Pack 3

To help you visualize easier, I will make a comparison: A computer with an average configuration at this time (early in 2015) has a configuration that is 10 times powerful than my computer.

I've been using this computer for working for 4 years. And at this time, if you ask me: "Which is the best and lightest antivirus software?” I will answer immediately without thinking: "Panda Cloud Antivirus Pro".

Before you read this article, What is your antivirus software?

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Why I choose Panda Cloud Antivirus to be an antivirus software for computer with low configuration?

An antivirus software for slow computer must meet three requirements below:


  • Find and remove the virus effectively
  • Lightweight and does not slow down your computer.
  • Compatible with old operating systems such as Windows XP Pack 2


After using the old computer for 4 years, I choose Panda Cloud Antivirus Pro because it can meet the three requirements above.

In addition, Panda Cloud Antivirus has great features which help optimizing your computer's resources.

Panda Cloud Antivirus system requirements

Picture for Panda System requirements
Picture for Panda System requirements | Source

These features help Panda Cloud Antivirus Pro became the best and lightest antivirus software

  • It takes short time to install and does not require too much space on your hard drive (the size is 120 MB)
  • There are not many notifications or requests which make you feel uncomfortable and slow down your computer. Of course, Except for the free version and a trial version. Panda software usually has announcements for deals or remaining the term of copyright
  • Panda Cloud only provides basic and necessary protection, so that this antivirus software does not use too many resources on your computer.
  • Maximizing the use of cloud computing technology to reduce the usage of resources in your computer to a minimizing level.
  • Auto mode disables the software to give computer resources for other applications. When you run various applications, the Panda Cloud will automatically turn off temporary to give resources for other applications
  • Automatically upgrade to the new version. Panda Cloud Antivirus can automatically upgrade to the latest version when this latest version available. You do not have to pay any additional fee for this.
  • Update the database without slowing down your computer. Since using Panda Cloud Antivirus Pro, my computer is not interrupted when antivirus software update. This is completely different from using Kaspersky, my computer often crashes when Kaspersky is updating.
  • Do not slow down startup process and shutdown your computer.

Panda Cloud Antivirus software is lightweight and good.

Click thumbnail to view full-size
My computer ! Panda Antivirus used Ram & CPU. It is very lightPanda Antivirus size
My computer !
My computer ! | Source
Panda Antivirus used Ram & CPU. It is very light
Panda Antivirus used Ram & CPU. It is very light | Source
Panda Antivirus size
Panda Antivirus size | Source

My own experiences:

Since using Panda Cloud Antivirus Pro, I can play the games such as Warcraft 3 and AOE without having to disable the antivirus software.

I know that the ability to protect computer, Panda Cloud Antivirus cannot be better than Kaspersky or Norton. However, with a low configuration computer, this is the best option. Kaspersky or Norton is too heavy for a low-profile computer.

I have used Panda Cloud for more than 2 years, and now my computer is still safely protected.

If you are using an old computer with low profile, try to use Panda Cloud Antivirus Pro. I believe that you will be satisfied when using it.

Picture for lightest antivirus software for slow PC

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Panda Cloud Antivirus mainPanda cloud antivirus usb vaccine tabPanda Cloud Antivirus process monitor tabPanda cloud antivirus protected tabPanda cloud antivirus rescue kit tabPanda cloud antivirus scan tab
Panda Cloud Antivirus main
Panda Cloud Antivirus main | Source
Panda cloud antivirus usb vaccine tab
Panda cloud antivirus usb vaccine tab | Source
Panda Cloud Antivirus process monitor tab
Panda Cloud Antivirus process monitor tab | Source
Panda cloud antivirus protected tab
Panda cloud antivirus protected tab | Source
Panda cloud antivirus rescue kit tab
Panda cloud antivirus rescue kit tab | Source
Panda cloud antivirus scan tab
Panda cloud antivirus scan tab | Source

I love this product! Very easy to use & download is the simplest I have encountered. Panda has caught a couple virus that would have ruined my laptop & I am happy to say it didn't. Thanks Panda for making a great product

— Anita McKinney - Customer Reviews on Amazon

When my subscription was about to expire, I got a desktop notification. That's somewhat annoying, but I could turn it off, or so I thought. Turning off the notification only turned off THAT notification. It doesn't turn off future notifications. After uninstalling it, I started to get emails for renewal. I unsubscribed, and I still keep getting them.

— Joe - Customer Reviews on Amazon

Do you need more features and better protection for the computer with low configuration?

Panda Cloud Antivirus Pro is the antivirus software of the Panda Security company. Beside the Panda Cloud Antivirus, this firm also has many software such as: Panda Antivirus, Panda Internet Security ... These software has more features and obviously heavier than Panda Cloud Antivirus.

I've tried Panda Antivirus on my computer and I realize that it uses more resources than Panda Cloud. However, it is still relatively light compared with antivirus software from other security companies.

Should we choose Panda Cloud Antivirus, Panda Antivirus or Panda Internet Security?

  • If you only need some basic protective solutions, choose Panda Cloud Antivirus. If you need more features, consider picking Panda Antivirus or Panda Internet Security.
  • If you want your Ram <1 GB, choose Panda Cloud Antivirus. On the other hand, if you want your Ram> = 1GB, select Panda Antivirus or Panda Internet Security.

Thank you for your interest in this article. Hope you can find an antivirus software which suits you the best.

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© 2015 Thuong Do Van

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    • soft365 profile image
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      Thuong Do Van 2 years ago

      @Dressage Husband: Thanks for comment, I think Panda is lighter weight than Trend Micro and Norton. But Panda is not better than Norton.

    • Dressage Husband profile image

      Stephen J Parkin 2 years ago from Pine Grove, Nova Scotia, Canada

      I really d not know Panda as I use Trend also because it is lighter weight than Norton.