Rated #1 by experts and more than 25 million users across the world.
K7 Antivirus has won numerous awards, and has been recognized as a leader in cybersecurity for it's innovations over the last three decades.
Works on up to 5 devices | No subscriptions or renewals required
Annual cost of ZERO,
for the rest of your life.
K7 Ultimate Security Infiniti, Unlike other Antivirus products, it does not require an annual or monthly subscription.
30+ features to beat all digital threats.
The K7 Promise
We promise 100% real-time protection from all kinds of existing and emerging threats.
Protect your kids online
- 'Bad content' blocker protects your child from consuming unwanted content.
- Control their time spent online.
Secure online transactions
- All your financial details: bank account and credit card numbers, your passwords are 100% secured
- Stay safe even while using a public Wi-fi connection.
Regular Data backup with restore option
K7 Infiniti regularly backs up your precious photos, music & files on PC and restores incase of loss
A safer internet
Safe surf restricts access to fake and phishing sites.Your online identity is protected by smart firewall. Secure your webcam from hacks
Product Update
Regular updates to protect your device against all emerging online threats.
Anti-theft protection
Track your missing or stolen mobile device in real time (Android, iOS)
Advanced PC Security
Connect all external devices without fear. From USB scanning to webcam protection and data locking, we've got you covered.
Over 30 years of accolades.
K7 Antivirus has been internationally recognized as a leader in the cybersecurity landscape. A pioneer of innovation, K7 has won numerous international and local awards over the last 30 years.
Best Performing Security Product
Excellent protection guaranteed
100% malware detection
100% in threat detection
0% False detection
One license for all your devices.
Protect up to 5 devices with a single purchase.

The K7 Antivirus installer can be downloaded for Windows and Mac on this link here, or directly from the Google Play Store on Android, or the App Store on iOS.
Windows
Mac
Android
iOS
Pay once, stay protected forever with K7 Infiniti.
When a user installs and activates their K7 Infiniti license on a device, that device becomes protected and stays secure for the rest of its lifetime.
Download the installer directly from K7 Computing's website. On mobile devices, the K7 Antivirus app can be installed via the Google Play Store on Android, or App Store on iOS.
Login to the K7 Antivirus client or app and enter your details. Then, activate your license key by entering it and clicking 'Activate'.
With regular and automatic updates, K7 Infiniti keeps your device(s) protected from all existing and emerging digital threats.
Affordable, accessible and efficient.
K7 Infiniti is designed to be as easy to use as possible, and works quietly in the background without ever affecting your system's performance. Users can get an overview of the product's features from the home screen in the K7 Antivirus client.
Virus detection mechanism
K7 Infiniti automatically detects existing and emerging cyberthreats, and eliminates them without bothering the user.
Compare K7 products based on features
K7 Total
Security
Recommended
K7 Ultimate
Security
Infiniti
Edition
K7
Ultimate
Security

Threat Protection
Advanced PC Security
Product Update
Internet Protection
Web Protection
Privacy / Parental Control
PC Tuneup Tools

Threat Protection
Advanced PC Security
Product Update
Internet Protection
Web Protection
Privacy / Parental Control
PC Tuneup Tools
Data Backup & Restore
Mobile Protection
Tough on Threats.
Easy on your system.
PC mark score
(Higher the score, better the protection)
K7 Ultimate Security Infiniti
99.2
Mcafee
97.8
Norton LifeLock
97.3
Kaspersky
97.1
Quickheal
Not Tested
System impact score
(Lower the score, lesser the impact on system performance)
K7
Ultimate Security Infiniti
0.8
Mcafee
2.2
Norton LifeLock
12.7
Kaspersky
2.7
Quickheal
Not Tested
 
*Based on tests done by AV Comparatives 2020
Customer
testimonials
  • "It was difficult to renew each computer every year in my office. Now this product has made it stress free. No need to worry about renewals every year."
    V R Srinivasan
  • "Have installed in 2 devices and they are working good. I'll definitely recommend to my dear ones."
    Keshav Garg
Best Performance
Fast Scan
Best Protection
Our Other Products
Frequently Asked Questions
 
  • What is the K7 Infiniti Offer?
    Antivirus products are usually offered on a subscription basis, where you receive malware definition updates during the subscription period, and you have to keep renewing your subscription. The K7 Infiniti Offer only requires a one-time payment for which you get malware definition updates and new feature updates as and when they are released. With no renewal ever needed again, i.e., you only pay once and enjoy lifetime protection.
  • Which K7 antivirus is covered by the Infiniti Offer?
    This is an antivirus bundle that protects any 5 Windows, Mac, Android, or iOS devices i.e., you can protect 5 Windows devices or 2 Windows + 1 iPhone + 1 iPad + 1 Android device or any other combination of 5 devices. The one-time payment gives you feature and malware definition updates for all 5 devices.
  • How does the K7 Infiniti Offer improve my cybersafety?
    The malware definitions that are updated multiple times a day are critical to cybersafety. K7 Labs analyses hundreds of thousands of malware samples every day, which indicates the volume of threats that a netizen faces on a daily basis. Any antivirus is only as good as its last update, and the Infiniti offer ensures that you continuously receive the latest updates without any breaks that might occur due to subscription expiry. Put simply, the Infiniti Offer ensures life long peace of mind.
  • Which type of users benefit from the K7 Infiniti Offer?
    Any home user who uses multiple devices, or whose family uses multiple devices, will benefit from this offer. The antivirus is designed to satisfy the needs of different types of users. K7 Security won the Gold award from AV-Comparatives for Best Overall Speed in 2020, which means that K7's ultra-efficient scan engine does not slow down your device or affect its performance, even while gaming. The very low bandwidth consumption also ensures that your movie streaming or video conferencing will never be affected by updates downloading in the background.
  • The Infiniti Offer is nice, but how good is the antivirus protection?
    25+ million users across 100+ countries trust K7's antivirus. We protect against viruses, ransomware, trojans, web threats, phishing, and zero-day attacks. Our mobile device protection includes real-time device tracking for protection against device theft.

    K7's protection also consistently wins awards from international antivirus testing agencies like AV-TEST (Germany), AV-Comparatives (Austria), and Virus Bulletin (UK). Do visit their website and be assured of our performance and efficiency.

  • This is great! How do I use the K7 Infiniti Offer?
    You only need to install and activate the product after purchase. Infiniti lifetime validity is automatically applied.
  • My existing antivirus product expires in 30 days can I use the offer then?
    The offer is valid only for a limited period. Buy the product now under this offer and activate as soon as your other product expires. Celebrating three decades of protecting millions of customers, this is a limited period offer and for the first 50,000 customers only.
  • Can I buy it from the IT market?
    No, this offer is available only through online.
  • Why is this a limited time offer?
    Celebrating three decades of protecting millions of customers, this offer is a token of appreciation to all our valuable customers.
  • Will the product take care of upgrades and version changes done by the OS company?
    The Infiniti lifetime validity is linked to the validity of the Operating System (OS) and will be active as long as the OS is supported and active.
  • What does lifetime mean?
    Lifetime validity is defined as, and is linked to, the validity until the end of the life of the supported versions of operating systems. See below in supported OS for the same.
  • If Windows or Android releases an update, will my antivirus still work?
    Yes, the K7 Ultimate Security Infiniti Edition will be active for all supported OS.
  • If iOS or Mac releases an update will my antivirus still work?
    Yes, the K7 Ultimate Security Infiniti Edition will be active for all supported OS.
  • My system crashed unexpectedly and its only two months since I got Infiniti offer, what should I do?
    Call our support, and you will be advised on how you can re-activate the K7 Ultimate Security Infiniti Edition.
  • Will I get a physical product and will I get it shipped to me?
    The K7 Ultimate Security Infiniti Edition can only be purchased online and the user will not get a physical product or pack. All you need is an active internet connection to download and activate the offer.
  • From where should I download the installation file of the Ultimate Security Infiniti Edition?
    You can download the installation file of the K7 Ultimate Security Infiniti Edition from https://www.k7computing.com/in/K7Setups/ultimatesecurity
System Requirements
Windows
  • Windows 11, 10, 8.1, 8
  • 1 GB (32-bit) or 2 GB (64-bit) of memory (RAM), 1 GB of free hard disk space
  • Working internet connection required for activation & updates
  • Administrator rights required to install the software
Mac OS
  • OS X 10.10 - 11
  • 2 GB RAM, 1 GB of free hard disk space
  • Working Internet connection required for activation & updates
  • Administrator rights required to install the software
Android OS
  • Android 5.0 or higher
  • Screen Resolution - 320x480 pixels and above
  • Mobile internet - (2G and above/Wi-Fi connection)
  • Working internet connection required for activation & updates
iOS
  • iOS 10.0 or higher
  • Screen resolution - 320x480 pixels and above
  • Mobile internet - (2G and above/Wi-Fi connection)
  • Working internet connection required for activation & updates
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