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Virtually every computer user understands that they need protection from online threats. But what is still a common misconception is that you must pay loads of money for it. Norton, McAfee or any of the other big name antivirus companies aren’t the only options. In fact, many reputable free antivirus programs Free Anti-Virus Comparison: 5 Popular Choices Go Toe-To-Toe Free Anti-Virus Comparison: 5 Popular Choices Go Toe-To-Toe What is the best free antivirus? This is among the most common questions we receive at MakeUseOf. People want to be protected, but they don’t want to have to pay a yearly fee or use... Read More are just as effective as the ones you would pay for, and avast! Free Antivirus is definitely one that we feel stands with the best Windows antivirus programs.

How Can It Be Free?

Great question — avast!, like some of the other popular free antivirus programs such as Avira and AVG, uses its free program as a promotion to get you to like the product enough to upgrade to a premium version. The free version in itself is just as effective and includes excellent antivirus detection technology and real-time protection from all types of malware What Is The Difference Between A Worm, A Trojan & A Virus? [MakeUseOf Explains] What Is The Difference Between A Worm, A Trojan & A Virus? [MakeUseOf Explains] Some people call any type of malicious software a "computer virus," but that isn't accurate. Viruses, worms, and trojans are different types of malicious software with different behaviors. In particular, they spread themselves in very... Read More . However, if you’re looking for more than just the essential protection from avast!, you’ll want to upgrade.

Key Features & Highlights

  • Background/real-time scanning
  • Scheduling and automatic definition updates
  • Hands-off, set-and-forget usage
  • Intuitive user interface
  • Bloatware-free installation
  • Light impact on system resources

Additional Useful Features

  • Software Updater (manual)
  • Browser Cleanup
  • Remote Assistance (for both parties)
  • Optional Browser Extension

What You Can Expect From avast!

Immediately you’ll appreciate the clean, user-friendly interface which allows for easy navigation around the program to adjust settings and program functions. When avast! is scanning your computer, you won’t even know it. I ran a Quick Scan while writing this article with 12 tabs open in Chrome, and running the other following programs all at once: Windows Live Writer, Evernote, Greenshot, and RIOT in combination with 91 other background processes.

Task manager - avast resources

So don’t worry about running avast! on a computer with fewer resources to offer. In fact, I will go as far to say that avast! is the perfect antivirus for those small computers with less RAM and small processors. Although there are some adjustments you will want to make initially, which I’ll cover throughout the article, there isn’t any reason you will need to visit them after setting them once, unless you’re the kind of person who likes to explore programs and tinker around with the details, which avast! allows you to do as well.

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Downloading & Installing avast!

Unless you’re starting out with a new computer Getting A New Computer, Part 3: Essential Programs & How To Efficiently Install Them Getting A New Computer, Part 3: Essential Programs & How To Efficiently Install Them One of the great things about a new computer is that you get to reassess what programs you really need and even try new ones that perhaps you haven't tried because you already had a... Read More and using a website such as Ninite.com, go to avast.com, click the blue “Go To Download” button and click the first “Download” button under “Essential avast! Free Antivirus”.

Avast - Download options - Free

When installing any program, I always recommend choosing the “custom” or “advanced” installation option, rather than the “regular” or “recommended” installation.

Avast - Installation - Custom

Getting in the habit of doing this will all programs will help keep any unwanted tag-along software off your computer A Simple Checklist To Safely Installing Free Software Without All The Junk A Simple Checklist To Safely Installing Free Software Without All The Junk Picture this - you've just found this awesome free software that you are stoked about because of all that it can do for you, but when you install it, you discover that it is packed... Read More  and ensure you know exactly what you’re installing. Often times, programs, avast! included, come with additional features or programs such as “avast! Remote Assistance” or “SecureLine”. These are features within avast!, that unless you intend to pay for them, you won’t be able to use. So if you don’t plan on using these, you can simply uncheck the box.

Avast - Installation - choose compenents to install

Another option you may or may not want is the “Browser protection” feature which installs an extension into your browser. If you already use a similar tool, such as Web Of Trust, and are happy with it, you can uncheck this option as well.

Avast - Browser Protection Plugin - Chrome

The rest of the installation is easy and straightforward. Avast! takes it upon itself to make a restore point How To Make Sure Windows System Restore Works When You Need It How To Make Sure Windows System Restore Works When You Need It System restore is not an automatic feature in Windows 7. Usually it is enabled when you've purchased a new system, but after running updates, installing system tools or running any other list of tasks that... Read More during the installation, which is always nice.

IMPORTANT: As with any antivirus software, be sure you have uninstalled any previous antivirus software prior to starting the avast! installation. The only exception being in Windows 8, where Windows Defender will automatically disable itself and display a prompt asking if you’d like to allow avast! to run.

Allow Avast

Registering For avast!

Avast - Registration - Button

After installing, avast! will automatically run the initial scan, although you will need to set up a schedule scan to accompany the real-time protection. Before you do that though, you must register in order to use avast! for free, which is a quick and painless process.

Avast - Register - Enter information

Avast - Registration - Select standard

During this time you may be given the option to upgrade, just continue with the normal registration.

Avast - Registration - stay with basic

It can be easy to, in the motion of things, accidentally click the “green button” instead of a lighter colored or smaller button and wonder why you’re being asked to pay for a free program. Just remember that avast! is free, but they have to make their money somehow in order to supply a free antivirus app to happy users like us.

Avast - upgrades

On that note, avast! is really not too bad about upgrade prompts. There’s a banner at the bottom of some windows, and some features have an unobtrusive upgrade button for additional options, but other than that, it’s not nearly as bad as some of the other free antiviruses with pop-up windows every time you open the program. There will be the occasional pop-up, but it never has become a nuisance to me. Just click the “X” and go about your business.

Avast - upgrades popup

Familiarizing With Features And Settings

You’ll quickly find that avast! has an awesome, easy-to-use user interface. The collapsible sidebar allows you to quickly navigate through the different sections of the program.

Avast - Home - Collapse Sidebar

Status Page

The Status page displays the basic information such as whether everything is up to date and if the File System, Mail and Web shields are active. These are all turned on by default, but if you’d like to adjust their individual settings, you can do so via the Settings button and then clicking “Active Protection”. There are four customizable squares on the Status page that you can right click and link to various parts of the program for quick access.

Avast - Home - Change remove shortcut

Scan Page

Avast - Scan Options

There are several types of scans you can choose and run manually: quick scan, full system scan, removable media scan, select folder scan, and boot-time scan. With each one you select, there is also a settings link (blue) that allows you to access scheduling, sensitivity, scan areas and file types, exclusions, additional actions, and more.

Most of the default settings will suffice, although you will need to set up a scheduled scan. Refer to the image below for some brief instructions. In the bottom right corner of the Scan page there are links to the Quarantine (Virus Chest), scan history and a custom scan.

Avast - Schedule Scan Settings

Tools

Avast - Tools

By hovering your cursor over the Tools link, a menu of additional features is displayed. Such tools include Software Updater, Browser Cleanup and Rescue Disk. Note that in the screenshot above, SecureLine and AccessAnywhere are also present, but those will cost you in order to take advantage of them (you may remember me mentioning in the beginning that you can choose to uncheck those features if you don’t intend to use them).

Software Updater (not automatic)

Avast - Tools - Software Updater

Browser Cleanup

Avast - Tools - Browser Cleanup

Rescue Disk

Avast - Tools - Rescue Disk

My Devices Page

Avast - My Devices

In order to access your devices, you must first log in, and if you haven’t created a password for your avast! account, you’ll need to do that. Afterwards though, you’ll be able to see all the different devices you have avast! installed on. Notice that avast! isn’t available solely on PC — there is also an avast! Android app Avast! Introduces Free Mobile Security App For Android 2.1+ [News] Avast! Introduces Free Mobile Security App For Android 2.1+ [News] There are plenty of free mobile security apps available for Android. The market seems to be filled to the brim with them. Yet it’s hard to say if they’re trustworthy because often they’re developed by... Read More , which is one of the 4 must-install apps for your new Android phone New Android Phone? Here Are The 4 Apps You Must Install Right Away New Android Phone? Here Are The 4 Apps You Must Install Right Away Were you the lucky recipient of a new Android phone over the holidays? If you were, you are in for a real treat. Read More . If you’re a Mac user, there is a compatible version available for you as well.

Help Pages

Avast - Help

Hovering over the “Help” button displays a menu with pages for Support, Feedback, Remote Assistance, About, and Tutorial. As someone who does a bit of technical support, Remote Assistance is an excellent feature that is easy to use without having to tell a client to go to a website and download a program.

avast! - Help - remote asssistance

Stats Pages

Avast - Stats - Your Stats

The next button down opens up stats for avast!, both personal and global. From the “Your Stats” button, you can view realtime data, historical data, and component status (pictured below).

Avast - Stats - Component status

Global stats cover Security Statistics, such as Streaming Updates, Infected Domains and Prevented Attacks, and User Statistics including Active Devices, OS Versions and User Demographics.

Avast - Stats - Global Stats

Settings

The second-to-last button in the sidebar is the settings. Here you can adjust numerous features and set avast! exactly how you would like in the following areas of General, Active Protection, Antivirus, Appearance, Updates, Registration, Tools, and Troubleshooting. Some (not all) of the settings you’ll probably find most useful are highlighted below.

General Settings

Avast - Settings - General

Here you will be able to set a password to protect various parts of avast!, toggle Silent/Gaming Mode, manage some maintenance settings and backup/restore previous settings.

Active Protection

Avast - Settings - Active Protection

Shield status was mentioned towards the beginning of the article when covering the Status page. This is where you can adjust the File System, Mail and Web shields individually. The defaults for these should suffice, but should you want to explore their settings more, this is where you can do that.

Antivirus

Avast - Settings - Antivirus

A new feature in avast! Free Antivirus is Hardened Mode (pictured above). Hardened Mode is unchecked by default, but created in mind of inexperienced users who could get themselves into trouble and for administrators who want to lock down settings while still enabling accounts. This mode only allows for known, whitelisted software to install, based the avast! community database.

Appearance

The defaults here all are likely what you’ll want. However, there is one setting that will concern most users and is also slightly difficult to find — the sound. You will notice that avast! has audible alerts and this can be annoying to many. The confusing thing is that the setting to adjust this is under Appearance.

Avast - Settings - Appearance - Sounds

“Sounds” will be second in line under “Language” and there will be a check box to toggle sounds as well as a dropdown menu titled “Sound settings” that will be collapsed by default. I don’t recommend disabling all sounds. Instead what I recommend is unchecking the “Scan complete” and “Automatic update” check boxes, and leaving the other three checked. If you ever need to change it, it’s always a few clicks away and now you know where to go. You can also disable voiceover sounds if you don’t want to hear the woman’s voice.

Update

Avast - Settings - Update

By default, avast! updates virus definitions on its own without you needing to set anything. For program version updates, the default is set to “ask when an update is available”, but this can be changed to automatic as well.

Avast - Settings - Update

Auto-update will occur every 240 minutes, but you can adjust this as well. And remember those ad popups mentioned earlier in the article? Those can be prevented by unchecking “Show notification box after automatic update.” The trade-off for this is that any sort of notification of when avast! is updated is also disabled.

Avast - Settings - Update

Browser Protection

Avast - Browser Protection Plugin

Paired with avast!’s real-time scanning is an optional browser extension to protect you from malicious websites. As stated earlier, this is a very similar tool to Web Of Trust, which is probably the number one browser extension for safeguarding against harmful websites Browse Safely With Your Own Internet Bodyguard Called WOT Browse Safely With Your Own Internet Bodyguard Called WOT Read More . The extension comes with an intuitive interface, which is triggered when you click the avast! logo button in the browser. The settings are easy to adjust too. For more settings, there’s a convenient button in the bottom right corner of the extension sidebar.

Avast - Browser Protection Plugin - Settings

Final Thoughts

Since Microsoft Security Essentials got some negative feedback on missing infections, avast! has become my antivirus of choice, as well as what I recommend to anyone who asks. Coupling its very reputable presence among security experts with an intuitive design, what more could you ask for?

Do you use avast! or do you prefer another antivirus program?

Download: avast! Free Antivirus

  1. Lunamoth
    December 17, 2014 at 8:48 pm

    Avast let me down and I didn't have the free version. Full of Malware and in fact it turned OFF the Avast. Nice.. guess all good things must come to an end.

  2. web ruler
    July 7, 2014 at 6:52 am

    You can get lots of softwares from http://www.gfxhead.com undesr softwares category

  3. James
    May 13, 2014 at 8:54 pm

    There is secure hunter as well not sure they out yet

  4. Anonymous
    April 4, 2014 at 1:42 am

    Bundle this with HitmanPro! One beast of a secondary scanner!

  5. Paul
    April 3, 2014 at 2:29 pm

    Having just given up Norton ... slowed down my system a lot... I am trying to decide between Avast and Trend..... any comments?

    • Al Adams
      July 8, 2016 at 11:01 pm

      Had TrendMicro Didn't Like, Went to McAfee FREE from my ISP Service ...

  6. ranjit
    March 19, 2014 at 11:04 am

    avg's cleaning capacity is very poor. Better to use ms security essentials as it cleans malware very well than avg but ms is resource intensive. I mostly saw positive reviews regarding avast but does it fare well in cleaning than ms security essentials?

  7. Ashwin D
    March 15, 2014 at 8:01 am

    i have used Avast for almost 5 Years and I m totally impressed with it!
    Minimal Impact on System Resources and great detection. i never need an another antivirus ever:)

  8. Kitty
    March 14, 2014 at 7:09 pm

    I've used a lot of Anti-Viruses for the past few years and Avast and Avira are the once I alternately use. Norton turned me off before what a bloatware and it tells you everything has virus XD ESET NOD32 on the other note is very noisy. Kaspersky not a fan also a bloatware. AVG detects fake viruses.

  9. Kat
    March 14, 2014 at 6:44 pm

    Had Avast but got Norton since we got it as a package deal.
    Now I can't get Avast off my PC. Won't uninstall and is bugging me silly because it has expired,
    How the heck do I axe it without totally "nuking" the hard drive??

  10. Kaylee
    March 13, 2014 at 11:05 pm

    The download button on the Avast home page takes you to CNET download.com CNET has a rep for bundling downloads with spyware, downloaders, toolbars. Is the download a clean one? CNET has been know to bundle spyware with antivirus software downloads.

    http://www.zdnet.com/blog/security/cnet-download-com-not-so-spyware-free/2148
    http://insecure.org/news/download-com-fiasco.html
    http://www.billhartzer.com/pages/cnet-downloads-now-come-with-a-bonus-unwanted-programs-and-spyware/

  11. Bob
    March 13, 2014 at 4:06 pm

    Perhaps this product has improved. I installed it on three Macintosh computers several years ago. After a short time, I noticed all three machines seemed to be reacting slower, and occasionally hanging up - a behavior highly uncharacteristic of Mac OS X. I removed Avast from one of the machines. As I recall that took some doing. The problems disappeared. So, I removed it from the other machines and again no more slow response and no more hanging up. As I said, the product may be better now. This is just a caution. Having been burned once ...

  12. Ken
    March 13, 2014 at 2:54 pm

    I have been using Avast for several years and have found it to be effective and lightweight. And fun - I switched the language to Pirate Talk, so many of the messages are much more exciting now!

  13. Nancy B
    March 13, 2014 at 2:49 pm

    I've used avast! for the last 2 years and find it works great with my older PC and doesn't take up the room that AVG did.
    Annoying pop ups? I guess I turned that off as I don't get them at all!
    Last night it found a huge virus I hadn't realized I picked up somewhere and automatically but it into it's "vault", not on my PC and it's gone.
    I highly recommend the free Version.

  14. dragonmouth
    March 13, 2014 at 12:58 pm

    You need to ask yourself if you are getting the same protection with Bitdefender as you got with Avast. The fact that Bitdefender is not slowing down your PC may just mean that it is not searching as throughly as Avast.

    I am just asking a question, I am not partial to either product. I use Linux.

  15. John
    March 13, 2014 at 7:19 am

    I had used avast for years, but it does slow computers down I had nothing running on my laptop apart from Skype and it slowed my computer down and even made skype's video block up. I now use bit defender with the most simple interface it has it is so easy to use and does not have a annoying pop ups or any annoying voices to say "avast database upgraded"

  16. Mohammad W
    March 13, 2014 at 7:14 am

    Thanks very useful review i agree with you.

  17. Rajiv Vishwa
    March 13, 2014 at 5:08 am

    Last time I'd used Avast, I had a hard time figuring out how to uninstall it. Mac users, should use the installer dmg to uninstall Avast.

    Also if you have ClamXav installed, you'll to remove it to install Avast.

  18. M Mahtab S
    March 13, 2014 at 3:47 am

    I am also Aast user from past 2 years , One thing that I likes in Avast is Advanced Site Blocking , you can list any site which you don't like to see you can list that and avast will block that on you pc.

  19. Robert
    March 13, 2014 at 1:40 am

    Here's what is really SICK! Downloaded the latest Windows 8.1 upgrade and started to install. Up pops a window that tells me I need to uninstall several programs and apps before I can finish the Windows upgrade! And guess what one of their needed uninstalls was? Avast Antivirus! WTF?!!

    • Gonzalo
      June 13, 2014 at 6:29 am

      Many AVs might get in the way of a system upgrade/update as it tries to modify system files or terminate services to do it.
      Its normal and its a preventive mechanism because if your install blue screens after installation because avast quarantined a file, you will be quite angry and also probably blame windows as you are doing now, and everyone does...
      Video drivers crashes on linux, people say "f u nvidia and your bad drivers".
      Video drivers crashes on windows, people say "f u windows, why you no work?"

  20. Arun
    March 13, 2014 at 1:03 am

    Using Avast for 5 years.. it's the best antivirus ever.. i likes that sounds and popups too…

  21. Sandy Coulter
    March 13, 2014 at 1:02 am

    There is no doubt that Avast is the best free anti-virus around. I have used AVG and Avast is significantly better. The boot time scan is probably its best feature for dealing with an infected computer. After running malwarebytes, install Avast and run that boot-time scan. You will see that it finds and eradicates malware that malwarebytes misses. That being said, it is imperative to do a custom install and remove most of the extras, specifically the software updater which can become a real PITA when it slows the system down for the sake of updates you really don't need. I have also experienced problems installing or updating Avast on some computer configs, including one of my own where after the lamest support ever from Avast, I was forced to get Avira free instead. I'd rather have Avast, but for some unknown reason it screwed everything up after the last major program update and had to be uninstalled.

  22. Martin F
    March 13, 2014 at 12:40 am

    Avast user here. I like it so much I pay for the Pro version. Recommend it to anyone / everyone!!!

  23. Howard B
    March 12, 2014 at 11:23 pm

    Why should I choose Avast! over AVG Free 2014? I don't see anything to specifically recommend Avast!, aside from the nagging upgrade popups in AVG, and I like the fact that AVG doesn't require my email address, and it upgrades to the newest version regularly (sometimes an engine upgrade, sometimes the annual version upgrade).

    • likefunbutnot
      March 13, 2014 at 12:43 am

      AVG is much more more resource intensive on the same hardware. Avast Free is relatively lightweight for an antivirus product. AVG was a solid product that has gotten steadily worse. Current versions are pretty much in the same "turn your PC in to a boat anchor" category as many other common Windows security products.

      Avast's for-pay version also suffers from that issue, but the free version is a big step up.

  24. Andrey Z
    March 12, 2014 at 10:50 pm

    I apologize, replace the "Web Of cane" on "Web Of Trust"

  25. Andrey Z
    March 12, 2014 at 10:48 pm

    I once stood Web Of cane, but started having problems with flash in Mozilla Firefox and had to abandon it

  26. Ben S
    March 12, 2014 at 8:46 pm

    Awesome write-up! I'm going to send this guide to people who I recommend avast! to from now on, because there is a lot to do once it's installed. I love avast! - it hasn't disappointed me yet.
    I'd definitely recommend turning off the pop-ups for automatic updates. You surely want to be notified about malware, but not every time the database updates itself.

  27. Ed
    March 12, 2014 at 8:00 pm

    Avast user for many years.

    Seems like the pop ups have become more numerous over the past year, but not enough to make me switch to something else.

    You can set the duration of most popups. Security popups I have set to 30 seconds, while I try to keep anything else to about 5 seconds.

    Do agree, that it feels light on resources though.

    I like it a lot.

  28. Tom W
    March 12, 2014 at 6:07 pm

    I have used Avast for many years, and I recommend it to anyone who doesn't currently have an anti-virus. That said, the pop-ups really annoy me. They show me the same pop-up several times a day, often for several days. I have a pet peeve futility, and dismissing the exact same pop-up so many times is torture for me.

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