Sat Aug 24, 2019 - Maximum Software is in NO WAY affiliated with The Defender Pro Family. If you have received an email from them, please give us a call at 877-887-3427.   IMPORTANT NOTICE: We have received numerous phone calls and emails that Defender Pro has closed. This is ABSOLUTELY FALSE. Our attorneys are actively researching these complaints and we apologize for any confusion this may cause. If you do get this fraudulent call, hang up and call US back at 877-661-2977. Remember also to not believe the number on your Caller ID, as that can be faked. Thank you from the Defender Pro family.

Defender Pro Lifetime*

Award Winning Windows Anti Virus and Security

  • One-Time Payment for Lifetime PC Protection
  • No Renewal Fees
  • Transferable from PC to PC
  • Privacy and Security
Try Now Buy Now $299.00

Your satisfaction is our number one priority. We stand behind all of our products with one of the best guarantees in the industry. If within 30 days of purchase you're dissatisfied for any reason, we will give you a full refund.
Learn more.

The Antivirus you always needed

Check out this 1 minute video and learn how Defender Pro can protect you and your family or small business.

Find the Defender Pro Right for You!

Key Features
  • License Terms
  • Protection
  • Real Time Firewall
  • Multiple PC Protection
  • Privacy Protection
  • Private Browsing
  • Surf Safe
  • Free Support
  • Award Winning Protection
Defender Pro

Internet Security & Antivirus

  • 1 Yr/3 Pc's
  • Virus, Spyware, Ransomware, I.D Theft
  • Yes
  • Yes
  • Yes
  • Yes
  • Yes
  • 9am-9pm EST 7 Days
  • Yes
Defender Pro

Lifetime Protection

  • 5 Yr/ 1 PC
  • Virus, Spyware, Ransomware, I.D Theft, Private Browsing
  • Yes
  • No
  • Yes
  • Yes
  • Yes
  • 9am-9pm EST 7 Days
  • Yes

"Defender Pro's Software takes the worry away from protecting your PC and makes it easy – even for first-time computer users. Top score for user experience: 5 out of 5!"

Maggie G. Arkansas

Supported OS:

  • Windows 10 (32-bit or 64-bit)
  • Windows 8 & 8.1 (32-bit or 64-bit)
  • Windows 7 (32-bit or 64-bit)
  • Windows Vista (32-bit or 64-bit)


  • Min. 1.5 GB RAM


  • Intel or AMD
  • 1.66GHz+ or equivalent


  • Administrative rights, an internet connection, and web browser will be required during installation.

    To uninstall Defender Pro simply use the Windows Control Panel - Programs and Features function to uninstall the application from your system.


Detect and remove viruses, spyware, ransomware and other threats with our award winning antivirus technology. Surf and Shop safely on any PC or laptop.

Firewall Control Center

The Firewall Control Center provides you with easy to use tools to ensure continuous monitoring and protection during all your online activities providing real time threat alerts when needed.

Peace of Mind

Protect yourself and your family from from identity thieves, data theft and spyware with our real time internet security scan engine. Defender Pro Internet Security helps ensure that your online activities and browsing habits remain private, blocking hidden programs that track and steal your personal information.

10+ Years in the AV industry

Defender-Pro is an award winning anti-virus application that will give your PC a lifetime of protection. The advanced feature set combined with over 10 years in the industry make it the right choice to protect you and your PC.

*Lifetime: Refers to average PC lifetime which is defined as 5 years.

We can help

Having a little technical trouble? Don't worry, our dedicated support is working Monday-Friday 9am – 5pm EST to make sure you get the smoothest Defender Pro Lifetime* experience possible.

Call us Toll Free at 1-877-887-3427.

Disclaimer: Telephone agents providing support may offer additional products and services.