PER Antivirus
Fast, Lightweight & Unbreakable Protection Since 1986
Advanced Virus Protection
Over the course of close to 40 years, PER Antivirus has been a worldwide leader in the study, identification, and elimination of viruses. It is designed to perfection and is only 2.2 MB, which is optimized to provide unmatched protection without slackening your system. Protecting your devices against worms, Trojans, backdoors, spyware, keyloggers, malicious scripts, and all other types of attackers since well before the advent of modern cyberattacks, PER Antivirus defends against all types of attacks regardless of the origin, format, or extension.
As opposed to the heavy, resource-intensive security programs, PER Antivirus is developed based on Assembler and MS Visual C++ to guarantee the ultra-fast processing, minimum resource consumption, and maximum compatibility with the systems.
Why PER Antivirus?

Lightweight. Powerful. Proven.
PER Antivirus is among the lightest antivirus applications in the world, and it offers enterprise level security that is trusted by users since 1986. It is compatible with all the Windows operating systems and uses one version on all the devices.

Fast Detection Engine
Its optimized architecture scans threats with a velocity unmatched by other systems and accuracy that is unparalleled in the provision of real-time protection without lag.

Cross-Platform Windows Compatibility
Whether you're using older Windows systems or the latest versions, PER Antivirus remains stable, reliable, and fully compatible.
39+ Years
Protecting users since 1986
2.2 MB
One of the world’s lightest antivirus programs
99% Threat Coverage
Protection against viruses, spyware, Trojans & more
Millions Protected
Trusted worldwide for fast and reliable defense
Our Core Services
- Real-Time Threat Monitoring: Background protection that prevents viruses, spyware, ransomware, malware scripts and suspicious activity as soon as they occur – without slowing you down.
- Advanced Virus Removal: Eliminate intractable infections like Trojans, backdoors and keyloggers with the industry-proven cleaning engine of PER based on 40 years of research and development.
- System Optimization & Safe Browsing: PER Antivirus keep your system fast, stable, and secure when using it everyday, when downloading, as well as when browsing the internet, reducing risks as well as maximizing performance.
Testimonials
Patricia Muler
Tech Engineer
Nicholas Arimoly
IT Consultant
“Fast scans, strong detection, zero slowdown. Exactly what antivirus should be.”
Dean Statson
Home User
Latest News & Updates
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