Download Best Free Antivirus and Anti-Spyware Software for Windows

If you are a Windows user, you must install an antivirus and anti-spyware software in your system. We all install software, games, themes and many other stuff from various sources such as downloaded from Internet, from CD/DVD, USB drives, etc and if the downloaded file is infected, it can also install a virus or spyware in our system as a bonus.

That's why we need a good antivirus and anti-spyware software for Windows OS. This software protects our system from suspicious items. It continuously monitors our system and warns us whenever it finds a malicious item in our system.

There are many antivirus and anti-spyware software available on Internet to download. Some of them are free and some of them are paid. Obviously paid security software provide more features and control over them in comparison with free software programs.

But there are a few free antivirus and anti-spyware programs which provide almost all features which a paid security software provides.

Today in this topic, we are going to list best free antivirus and anti-spyware software for Windows operating system for your convenience. We have tested many security programs in past and found following programs best of them. If you are not using any antivirus or anti-spyware program in your system, you must install one of the following without wasting time:

1. Microsoft Security Essentials (MSE)

Microsoft Security Essentials (also known as MSE) is one of the best free antivirus and anti-spyware software for Windows. Its an official security program released by Microsoft. Its available absolutely free to download but you'll need genuine Windows to install it.

It can be installed in Windows XP, Vista and Windows 7. Windows 8/8.1/10 already come with MSE preinstalled. You can install it in both 32-bit and 64-bit operating systems.

Download Microsoft Security Essentials (MSE)

2. Avast! Free Antivirus

We put Avast! antivirus on 2nd position. It comes with antivirus, anti-spyware, firewall and many other security components. It can be installed in Windows XP SP3, Windows Vista, Windows 7, Windows 8/8.1 and Windows 10. Both 32-bit and 64-bit editions are supported.

Download Avast! Antivirus

3. AVG Antivirus Free Edition

AVG antivirus is almost equivalent to avast! antivirus. It also comes with antivirus, anti-spyware, link scanner and many other security features. It can be installed in Windows XP and all later Windows versions.

Download AVG Antivirus

4. Avira Free Antivirus

Avira is also one of the widely used antivirus for Windows OS. It can protect your system from virus, spyware, malware, trojan, rootkits and many other forms of malicious programs. Avira antivirus can be installed in Windows XP and later. It supports both 32-bit and 64-bit Windows editions.

Download Avira Free Antivirus

5. Kaspersky Free Antivirus

Kaspersky has also released free version of its popular antivirus software which can be installed in Windows XP SP3 and later Windows versions. Its very light on system resources and comes with almost all basic types of protection including file, web, IM and email.

Download Kaspersky Free Antivirus

6. Panda Cloud Free Antivirus

And last but not least its turn of "Panda free antivirus" which is a very light-weight antivirus software for Windows. Its based on cloud computing concept which makes it one of the most light-weight antivirus programs available for Windows. You need a good speed Internet connection in your system to use it. It can be used in Windows XP and later. As usual both 32-bit and 64-bit editions are supported.

Download Panda Cloud Free Antivirus

That's all for now. If you are using any other free antivirus or anti-spyware software in your system, feel free to share your feedback in your comment.

Also check out following interesting and useful related topics:


Please share this article: Facebook | Twitter | Google+ | Reddit | Tell a friend

Posted in: Software, Windows 10, Windows 7, Windows 8 / 8.1, Windows Vista, Windows XP

What's next: AskVG Apps | AskVG Gallery | Popular articles | Follow us | Tip us

Other similar articles that may interest you


  • I was using PC Tools AV for about 2 years... DON 'T TRY THIS ! ! !
    I hate to say it but... I vote for MSE ;-)

  • Microsoft Security Essentials is awesome!

  • AVAST is the BEST free antivirus out there!

  • MSE scores very low on protection.

  • MSE is the best spyware ever for Microsoft Windows.

  • Hi all, i'm just a newbie to computer. Can anyone tell me if all of these stuffs are free to use forever, or just a limited time?? Thanks in advance. ^^

  • @Sothea MSE is full for free, forever. Others provide basic protection for free, and paying gives more features, like tech support.

  • As to Avast I'm surprised you put it second given that most reviews of Avast 7 say it's absolutely atrocious. Here's an example

  • MSE failed to catch viruses on my personal computer and the computer of someone else in my family. I switched to Avast and have not been disappointed. It has saved me many times. AVG ruined my computer once before too. I've also seen reports where MSE scores lower than Avast and AVG. It should be fourth on this list at best.

  • @Sothea,

    they're always free and they will remain like that forever and after

  • MSE unfortunately comes bottom for virus detection and is so damn stupid it tells me I haven't run a scan in a while whilst showing that I actually ran a full scan only 3 days ago. I was going to switch to Avast until I read the reviews of Avast 7.

  • How about bitdefender free antivirus?
    I recently downloaded it and it works just fine.
    It has a minimal interface and lightweight with realtime protection

  • Well the test that u guyz are mentioning were done on powerfull viruses and being a free av mse does a pretty good job at protecting a home customer or even a business. I have mse installed on windows 8 x64 and its doing a fine job and no complaints till now.
    On the other hand other free av's would slow down ur pc including bitdefender free version, mse is the most compatible with windows.Bit defender free version just deletes the file without the option to repair , allow or quarantine a file.

  • MSE is for me! But next time I get connected on my PC I'll try others, Avast! Free AV is on my mind currently.

  • after i install the avast internet security my laptop restarts and becomes black in the next startup.....

  • i need "moro pc cillin antivirus" not "micro" pc cillin, help me please..

  • MSE Always doesn't detect any virus.
    About 2 years ago, My pc wase affected with trojan and the antivirus was MSE.
    It doesn't told us that your pc is affected with virus and even when I start scan now button
    it scans all the directories and even regestry errors and says your pc is safe. My pc took about 10 minutes to start and first blue screen open. But now I have switched to Norton Antivirus
    It automatically deletes/removes all the trojan horses, even in my usb drive, there werw about 3 trojans and it detected and in just 10 seconds all the viruses removed automatically.
    And now my pc boots more faster, just in 2 minutes welcome screen comes, but after it a blank screen shows I don't know why and I don't care about it!
    MSE S**ks a lot!

  • Used to love AVG but they started partnering with a search engine that will embed itself in your system, hijack your homepage (even if you reset your homepage it will take it back), and is virtually impossible to remove (it doesn't have its own directory/folder, they regularly change both publisher and product name, it doesn't uninstall with AVG and Defraggler couldn't even find it).

    I had to contact AVG and go back and forth with them, eventually threatening to sue, just to get them to walk me through the process for getting into the registry to get rid of the entry (I still suspect there are remnants of it- my computer has never acted right since).

    I definitely recommend staying away from AVG.

  • Dear Vishal please add date and time of each article. Thanks

  • April, 2014

    I was using Bit Defender 2012 for the last couple of years & I liked it (paid version) and I’ve installed my recently purchased 2014 version of Bit Defender and now my system is moving like it’s dragging a dead cow behind it while trying to jog……has a hard time opening multiple tabs (more than 2) in a window. They've taken a usable anti-virus program and turned it into a sluggish piece of bloatware. Do not purchase this p.o.s.

    I removed it and installed Avast! free - smooth running now. I will still run CCleaner,Trend Micro, Malwarebits periodically.

  • In my pc some files were created automatically with the name of another file name i delete but it was created! I guess it was virus it is correct please tell me a way to protect my pc

  • VG

    ^^ Please follow instructions given in following topic:

  • MSE - is ok but takes ages to detect and i have found many hidden virus still on the system
    AVG - biggest load of crap out there slows your laptop down and installs alot of bloatware
    mcafee - why pay for rubish installs with free programs as bloatware for free scan
    norton - create their own viruses to look better than others to make money but dont work
    panda - i have notices more buissnesses use this these days but not the most secure
    AVAST - had 1 or to issues but they rectify it normally within a few days excelent protection and will recommend it i install avast on every laptop or pc i repair as it is a great free anti virus plus

    I recomend avast as it updates regular and is excelent value for money also

  • Well, I'm using 360 Internet Security and it works fine :)

  • Hey Vishal,
    Is MSE a complete security solution?
    Does it protect from USB viruses?


  • VG

    ^^ Its a good security solution. But you should also try other mentioned programs.

  • Tried MSE. It never found anything even when I KNEW there were viruses, PUPs, adware...

    Tried Norton. Continually let in viruses just so it could get rid of them and brag about itself... Also, it is NEARLY IMPOSSIBLE TO FULLY UNINSTALL. The "uninstaller" only removes the main program, you'll have to delete the other files and registry entries one by one.. manually.

    Tried AVG. It installed all kinds of junk and hijacked my browser. Avoid this one.

    Tried Avast. It detected most of the viruses I knew were here, but left some traces behind... I'd give it 3 stars.

    Tried Bitdefender. It was about the same as Avast... worked sometimes but it isn't my favorite.

    Tried Kaspersky. I'd give it 4 1/2 stars. It found practically everything, did a pretty good job of cleaning everything up. There were a couple of traces left behind though as well as some junk and harmless-but-annoying adware, which is why I don't give it 5 stars. As far as ongoing protection is concerned, however, this is a definite 5. I have Kaspersky installed on this laptop and it has worked quite well for almost a year now.

    Tried Malwarebytes. It works as well as Kaspersky for cleaning out malware but is a bit annoying with all the "special offers" popups. I still have it installed alongside Kaspersky because the two programs seem to compliment each other; whatever one program cannot detect or remove, the other can.

    In addition to an antivirus, I highly recommend Wise Cleaner. It is not a virus scanner, but it cleans out junk, empty files, invalid registry entries, and other memory hogs. You do need to use it carefully though; don't let it delete anything without first looking through the scan reports or it might delete something important by accident. As long as you have a fairly confident understanding of your computer, Wise is a wise choice. ;)

  • Question MSE doesn't work on windows 8.1. What virus protection is free forever for windows 8.1 ?

  • VG

    ^^ Windows 8/8.1 already come with MSE preinstalled. Windows Defender in Windows 8/8.1 is equivalent to MSE. You can also use AVG, avast, Avira, etc free antivirus.

  • I always prefer's best for me.

  • Hi VG,

    I find your articles very helpful, especially that its my first time to use windows 8.1
    I'm also using Lenovo g40 and it's only less than a week old. The unit frequently lags, so I searched for tips on how to solve the lag problem and I found your website. I find it helpful and easy to follow.

    Also, the unit has a pre-installed antivirus - McAfee. It's my first time to use McAfee since I've been using AVG and Avast in my previous laptops. You think McAfee works okay? Some would also say that antivirus also cause lag problems on laptops. Any advice? Thanks!

  • VG

    ^^ You can try other free antivirus such as avast, AVG or Avira.

  • As per my trials, i.e., AVG, Panda, Eset, Bitdefender, Norton, Avast!, 360 TS, QH,........and some others...huh...My top ratings go to these:
    360 TS, Avast AV. Bitdefender--next. Install 360 TS or Avast. In case of Avast free version--go to its settings for EACH AND EVERY SCAN, including the shields. Set scan priorities, heuristics levels to HIGH. Select 'scan the whole file' for each case...Then for Full scan/Boot scan, add these--'All harddisks, System drives, Rootkit full scan, modules of all users,etc... Upon applying these settings finally, Avast works like charm!! This can only be done if you got used to study the entire settings and also know what result would you obtain.

  • Hi
    I am reading these articles and as a non technical person I have a question. I currently have AVG and Reg defense instaled on my pc, do I need to have them both?? I can honestly say I dont know the difference between either product all I know is I had a few viruses/trojans back in the day and even thought I had the free AVG (been using this for years and its fine) I also paid for Reg defense to 'clean up' my pc.

  • VG

    ^^ You should uninstall Reg Defense from your PC. Its a falsely designed cleaning utility to make money from people.

    Post your HijackThis log file in following topic:

  • I haven‘t tried a lot of antivirus programs but since I‘ve found ESET Smart Security it has been my favourite ever since.

  • The list is wrong Bitdefender Total Security 2016 the best then kaspersky anti virus is 2nd and then norton360 multi-device is the 3rd . Please try it

  • I have a low spec PC, so I must very selective choose what I'm going to install. And, I use a lots of keygens and patchers, as we know many of them contains virus, trojan and malware.

    I hate sophisticated AV like the setting in each windows that explain this is your antivirus, this is your anti-spyware and etc. I just need it to WORK without the cost my PC speed.

    I had try them all. For simplicity I choose MSE and for speed I choose Panda and both of them WORKING by detecting lots of virus, trojan and malware in my downloaded keygens and patchers.

    But, I use ClamAV.

  • I have to agree with most on here with MSE, it is not that good.. I would give on a scale of 1 to 5, 1 being the lowest, a ( 1)..

    Most of these programs might find something wrong, such as adware, or malware, however, when you go to delete it, it only masks the problem.. Meaning that the adware or malware is still there... You just shut it off, it will eventually be back, especially if you restart the computer..

    I wish I could find and are looking and trying many products to see which is good. Because if it finds something I want the program to delete forever, NOT mask it..

    I use to use Advance System Care for quite a few yrs. But, when I go to download from ASC Website it takes me to CNet and I found that the program is full of adware and malware and it just messed up my computer again and NO I don't look at p**n either!!!!

    So, now I am on Ccleaner.. Which works great.. It has "almost" the same features as ASC but not all of them..

  • I find that Kaspersky and Bitdefender are the best ones. Unfortunately, both are paid but THEY have free versions. I prefer to use Kaspersky. I've paid for it and I'm very satisfied. The best free in my opinion is Avast. MSE is far from ideal.

  • i currently have MSE n it won't update so whats my best antivirus option using vista 32bit that i don't have to pay for

  • Hi Vishal....I have Comodo installed on Windows 10 that good or not..pls Advise with the good one..Thanks

  • VG

    ^^ Comodo is good but I'll advise you to go for avast!, AVG or Avira if you want a free antivirus.

  • Hey Vishal,
    How is Windows Defender (Windows 10) ??

  • VG

    ^^ Its better than previous Windows versions.

  • AVG............seems to have gone down hill. I have used the free version for a number of years. However this year I went to a paid version and things got bad and the so called techs in the phillipians were a diaster. So I am looking for something new. AVG has really gone down hill in my opinion.

  • AVAST is a pretty good one.

  • 360 total Security Antivirus Software has been reported by google Chrome as Phishing software and you are advised not install it or use it period.

  • i had it installed until i tried to add the extension to google chrome and it warned me not to do it.

Leave a Comment