Stay safer on Windows 7 — download our free antivirus

Microsoft no longer supports Windows 7 — but we do*. Avast Free Antivirus is top-rated. And it helps give you the latest protection against viruses and malware.

Free download

*Windows 7 SP1 with convenient rollup update or higher, any edition (32 or 64-bit)

Get top-rated Windows 7 antivirus protection

Free download

30+ years of cybersecurity experience

Easy to install, effortless to use

Safer browsing and emailing

Wi-Fi network security

Microsoft-trusted antivirus for Windows 7

Avast is Windows 7’s official consumer security software provider. That means we're trusted by Microsoft — and our millions of users — to help prevent viruses, malware, and other digital threats.

Get real-time protection against cyberthreats

Help protect your device automatically from viruses, malware, spyware, ransomware, and phishing attacks.

Block digital threats with in-depth security

Do more to scan for security weaknesses in hard-to-find places, remove malware, and isolate potentially harmful files.

Further secure your home Wi-Fi network

Scan your network and help identify Wi-Fi security vulnerabilities, secure devices, and prevent unauthorized network access.

Browse online and send and receive emails safer

Make your device work harder to block malicious websites, and receive alerts about suspicious email attachments.

Get full Windows 7 protection

Microsoft no longer supports Windows 7. This means no critical security updates are made to the operating system or to its built-in Microsoft Security Essentials tool. This is where Avast can help.

Avast’s award-winning cybersecurity solution is continually updated to provide Windows 7 users with ongoing antivirus protection. Learn more about how Avast protects Windows 7 users.

Free download

Check out these 5-star reviews from our customers:

I have used Avast™ for many years. The reason is very simple. You offer a great free version that actually works. This lets me afford the other amazing service's you offer when needed like Avast™ clean-up.

James M.

29 Aug 2023

I had recommended Avast™ to a co-working friend because he said his computer was running slow. He said he ran the anti-virus twice and his computer speed improved.

Michael S.

28 Aug 2023

Avast™ free antivirus does what it is supposed to do without much fuss. Though I would prefer fewer popups.

Joshua W.

25 Sep 2023

“...earns excellent scores in our hands-on tests and independent lab tests...it offers much more than many competing commercial products...”

"Awarded Outstanding Security Product 2021 by AV-Comparatives."

You may still be wondering...

FAQs

Is Windows 7 still safe to use?

Ever since Microsoft ended Windows 7 support on January 14th, 2020, technical support and security updates from Microsoft are unavailable to people who still use this operating system. Fortunately, there’s still a way to secure your Windows 7 PC: third-party security software, such as the kind offered by Avast.

How do I protect my Windows 7 from viruses?

The same way you protect any PC from a computer virus: with a powerful antivirus!

But if you’re looking for a good antivirus for PC viruses, you won’t find one better than Avast Antivirus for Windows 7. Our powerful Windows 7 virus scanner and removal tool will find any malware on your system and remove it, as well as prevent your PC from becoming infected with any other computer virus in the future.

No matter what type of malware is threatening your system, Avast is the solution.

Does Windows 7 have built-in antivirus?

Windows 7 does have Microsoft Security Essentials included automatically, but even before they stopped updating it, MSE offered only a very basic level of security. This means that for real Windows 7 security, you need a powerful and trusted third-party antivirus to keep you safe.

Is Avast still compatible with Windows 7?

It is possible to get Avast Antivirus for Windows 7, as we still support the operating system. We will continue to ensure that both our paid and free security remains compatible.

What makes Avast one of the best antivirus apps for Windows 7?

Avast offers one of the best Windows antivirus apps. For one, we use the world’s largest threat detection network combined with six layers of powerful security to identify and block malware threats, including zero-day threats. Secondly, our antivirus offers powerful spyware removal tools, protection against ransomware on Windows 7 PCs, and comprehensive virus scans. Finally, our large selection of options and settings ensures you get exactly the level of protection you want.

What will happen to my antivirus if I upgrade from Windows 7?

If you do choose to upgrade from Windows 7, you will need to uninstall and reinstall your antivirus software, which you can do for free. If you have the paid version of our product, Avast Premium Security, you may need to input the activation code again to retain your paid features. Once you do that, you’ll be able to enjoy the latest and greatest from both Avast and Microsoft, specifically if you’re upgrading to Windows 10 and Avast Antivirus for Windows 10.

How to install

Get protected right away by following these 3 easy steps:

Step 1

1. Download our app

Click here to download.

Step 2

2. Open the file

Open the downloaded file and approve the installation.

Step 3

3. Install the file

Run the installer and follow the simple instructions.

System requirements

Avast’s protection is powerful and light. All you need is a PC with 256 MB+ RAM and 1.5 GB of hard disk space. If your Windows 7 PC has that (which it very likely should), you’ll be good to go.

Avast Antivirus is compatible with Windows 11, 10, 8.1, 8, 7, Vista, XP SP3 Avast also offers you security solutions for your Android and Mac