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Free Rootkit Scanner and Removal Tool

Your perfect anti-rootkit. Avast One scans and cleans rootkits currently on your device, and stops future rootkits and other types of threats before they can do any damage. 100% free and easy to use.

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2021
Editors' choice
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2021
Editor's choice
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Top Rated
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Our best free rootkit scanner and rootkit cleaner

Avast has over 30 years of experience hunting down malware like rootkits – no matter how well hidden.

Avast One is your secret weapon against rootkits and other kinds of malware:

We’ve packed the world’s largest threat-detection network and machine-learning malware protection into a single, lightweight malware scan and rootkit tool that won’t slow down your PC. And did we mention, it’s 100% free?

Stay safe with unmatched rootkit protection

Renowned by experts for its powerful security features, Avast One’s “numerous excellent lab scores” are a major reason why PCMag named it a 2021 Editors’ Choice — describing Avast One as “a partner to keep you, your devices, and your data safe and happy.”

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Meanwhile, TechRadar gave Avast One a full 5 stars for its comprehensive anti-malware protection and prevention: “Avast One doesn’t just do a good job of detecting malware: it detects and blocks access to malicious websites, reducing the chance you’ll get infected in the first place.”

Avast has been recognized for years with countless prestigious awards:

  • PC-mag_logo2

    PC Mag: Editors’ Choice, 2021

  • tech-rada-logo-27x27

    TechRadar: 5 stars, 2021

  • AV_test-logo2

    AV-TEST: Top Product, AV Test Certified, 2021

  • award-av-comparative-plkaceholder

    AV Comparatives: Top Rated Product Award, 2020

  • award-av-comparative-plkaceholder

    AV Comparatives: 2018 Product of the Year

  • award-av-comparative-plkaceholder

    AV Comparatives: Advanced+ in malware protection and removal, 2018

A rootkit scanner trusted by over 400 million users

But don’t just take our word for it.

Protect your Mac and Android, too

Rootkits don’t care what device you use, which means Macs and Androids aren’t safe either – unless they enjoy Avast’s powerful protection.

Strengthen your Mac’s built-in security with dedicated protection against viruses and malicious threats of all kinds, including rootkits. Avast’s Mac security software defends and optimizes your Apple computer and is powered by one of the world’s most powerful threat-detection networks.

Android devices and iPhones also need enhanced security and privacy protection to defend against malware and the array of other online threats. Avast’s Android antivirus protection helps secure your Wi-Fi while giving your phone the same adware-blocking, anti-malware power your PC enjoys.

Download our free rootkit scanner and remover

Say “goodbye forever” to rootkits and other threats with Avast One — at the low, low price of free.

FAQs

How do I find rootkits?

Rootkits are designed to avoid easy detection, often by hiding inside legitimate software. The most reliable way to find them is to use expert antivirus software that specializes in sniffing them out.

What do rootkits do to your computer?

In short, rootkits allow hackers to access parts of your device that they — or even you — aren’t normally allowed to reach. This gives them unfettered control over your system, which means they can basically do whatever they want.

Why are rootkits dangerous?

They don’t have to be: sometimes advanced users use rootkits to exercise greater control when customizing their own machines. But if someone has installed a rootkit on your device without your knowledge, it means they can basically exert absolute control over your device… which, when used by criminals, is universally bad.

System requirements

We’re not demanding. All you need is a PC with Windows 11, 10, 8.1, 8 or 7*, 1 GB RAM 
and 2 GB of hard disk space. And that’s it.

* Both the 32- and 64-bit versions, excluding Starter and RT editions.

Windows 10 compatible

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Protect your PC against rootkits and other threats with Avast One

FREE DOWNLOAD
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Get free adware protection for Mac with Avast One

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Get free adware protection for Android with Avast One

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Get free adware protection for your iPhone with Avast One

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