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.

Install free protection

Get it for Mac, PC, Android

Download free anti-rootkit

Get it for Android, iOS, Mac

Install free anti-rootkit

Get it for PC, Mac, iOS

Download free anti-rootkit

Get it for iOS, Android, PC

2025
Top Rated
Product

2026
Product
of the Year

Powerful rootkit scanner

Shop and bank securely

Trusted by over 400 million users

Award-winning protection

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. We’ve packed the world’s largest threat-detection network and machine-learning malware protection into Avast One — a single, lightweight rootkit removal tool. Install it today, for free.

Install free protection

Get it for Mac, PC, Android

Download free anti-rootkit

Get it for Android, iOS, Mac

Install free anti-rootkit

Get it for PC, Mac, iOS

Download free anti-rootkit

Get it for iOS, Android, PC

The benefits of Avast’s rootkit scanner and remover

File analyzer

Sends suspicious files to the Cloud for analysis, then pushes a cure to update if needed

24/7 updates

New rootkits are created all the time. We constantly update our engine to protect against the latest threats.

Smart Scan

No matter what kind of attack threatens your device or your data, Avast can scan for and remove them.

Behavior Shield

Provides immediate alerts if unusual app behavior is detected that may indicate a threat.

Quarantine

Isolates potentially harmful files from the rest of your system to keep it malware-free.

File Shield

Blocks potentially malicious files and alerts you if suspicious programs are detected on your device.

File analyzer

Sends suspicious files to the Cloud for analysis, then pushes a cure to update if needed

24/7 updates

New rootkits are created all the time. We constantly update our engine to protect against the latest threats.

Smart Scan

No matter what kind of attack threatens your device or your data, Avast can scan for and remove them.

Behavior Shield

Provides immediate alerts if unusual app behavior is detected that may indicate a threat.

Quarantine

Isolates potentially harmful files from the rest of your system to keep it malware-free.

File Shield

Blocks potentially malicious files and alerts you if suspicious programs are detected on your device.

Industry-leading rootkit protection

Avast One is renowned for its powerful security features and antivirus threat-detection engine.

Performance Test 2025 AV-Comparatives: Advanced +

Home User Protection Test 2025 AV Test: Top Rated Product

Advanced In-the-Wild Malware Test 2025 AVLab: Product of the Year

VB100 2024 Virus Bulletin: A+

Advanced Threat Protection Test 2024 AV-Test: Advanced

Protection trusted by over 400 million users

But don’t just take our word for it.

The UI for your software - amazing. Great work over the years. Can't say enough good things!

Ryan R.

Thank you, Avast, for the excellent work you do. I run your antivirus software on both my Mac OS X and my Windows machines. You have the best products on the market, period.

Eric S.

I’ve been using Avast for over a year and have found it one of the best free software protection devices on market.

Daryl C.

Protect your Mac and mobile devices, too

Rootkits don’t care what device you use. Macs, Androids, and iPhones are also vulnerable.

MAC

Android

IPHONE/IPAD

Strengthen your Mac’s built-in security with dedicated protection against malware. Avast’s Mac security software defends and optimizes your Mac with one of the world’s most powerful threat-detection networks.

Android devices also need enhanced security and privacy protection to defend against rootkits and other malware. Avast’s Android antivirus protection helps secure your Wi-Fi while giving your phone ironclad security.

Protect your iPhone and iPad against malware and the array of other online threats. Avast’s iOS security app helps secure your Wi-Fi while giving your phone a powerful shield against threats.

Download our free rootkit scanner and remover

Say goodbye to rootkits and other threats with Avast One. Install it today for free.

Install free protection

Get it for Mac, PC, Android

Download free anti-rootkit

Get it for Android, iOS, Mac

Install free anti-rootkit

Get it for PC, Mac, iOS

Download free anti-rootkit

Get it for iOS, Android, PC

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 a rootkit is to use expert antivirus software that specializes in sniffing them out.

What do rootkits do to your computer?

Rootkits allow hackers to access parts of your device that they — or even you — aren’t normally allowed to reach. That gives them control over your “root” system, which means they can wreak havoc undetected, unless you have a powerful rootkit scanner to prevent and detect them.

Why are rootkits dangerous?

If a cybercriminal installs a rootkit on your device without your knowledge, they can have near-total control over your device. But, rootkits don’t have to be dangerous: sometimes advanced users use rootkits to exercise greater control when customizing their own machines.

Other tools

Helpful links

System requirements

All devices require an internet connection for automatic security and program updates.

PC with Windows 11, 10, 8.1, 8 or 7 (both the 32 and 64-bit versions, excluding Starter and RT editions), 1 GB RAM and 2 GB of hard disk space, ARM chips Windows 11 only.

Mac running macOS 10.14 (Mojave) or later, 64-bit Intel or ARM processor, and 1 GB of free disk space.

Windows 10 compatible

Free Rootkit Scanner and Removal Tool

Our best free rootkit scanner and rootkit cleaner

Our best free rootkit scanner and rootkit cleaner

The benefits of Avast’s rootkit scanner and remover

Industry-leading rootkit protection

Protection trusted by over 400 million users

Ryan R.

Eric S.

Daryl C.

Protect your Mac and mobile devices, too

Download our free rootkit scanner and remover

FAQs

How do I find rootkits?

What do rootkits do to your computer?

Why are rootkits dangerous?

Other tools

Helpful links

System requirements

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