Free Virus Scanner

Malwarebytes security dashboard shown on desktop, laptop, and mobile devices with a 100% Excellent protection score.

Scan and remove viruses and malware from your device with our free virus scanner and AV scanner. Our virus scan supports all devices – Windows, Mac, Android and iOS.
Get advanced virus protection and antivirus with Malwarebytes Premium.

Malwarebytes security dashboard shown on desktop, laptop, and mobile devices with a 100% Excellent protection score.

Common signs of malware, viruses and cyber threats on your device

Lots of pop-ups

They might encourage you to visit unusual sites or download unfamiliar software.

Frequent crashes

Your device can freeze or crash due to hard drive damage from a virus.

Spam emails sent from your account

Everyone’s worst nightmare: a scammer sending emails to your contacts while pretending to be you.

Your password suddenly changes

Unusual stuff happens, like a password change, that keeps you from logging in.

Slow computer

If your computer suddenly starts running slowly, it could be a virus.

Your homepage is different

Your homepage defaults to a different website or you can’t reset it.

How to scan for malware and viruses

It only takes a few minutes with the free Malwarebytes virus scanner.

01

Download the scanner

Download the free Malwarebytes virus scanner and open the installer.

02

Install and open it

Follow the on-screen steps to install, then open the app.

03

Run a scan

Click Scan. Malwarebytes checks your device for viruses, malware, adware and other threats.

04

Remove what it finds

Review the results and quarantine any threats. Restart your device if prompted.

Scanning finds threats that are already on your device. To stop new ones from getting in, turn on real-time protection with Premium.

Free cleans up. Premium keeps threats out.

  • Individual
  • Family
  • Small business

Current customer? Log into MyAccount for your personalized deals.

Need to cover fewer devices?

Standard for
just one device

Simply antivirus for a single phone, tablet or PC.

1 device

[ Purchase Price ]/yr.

Current customer? Log into MyAccount for your personalized deals.

Current customer? Log into MyAccount for your personalized deals.

Sole proprietor

Starts from

[ List Price ]/yr.

Protects 3 devices


Advanced antivirus protection against malware, ransomware, and more

Protection from malicious Websites and scams

Privacy from Wi-fi snoopers

Performance boost from adblocker

Protects PCs, Macs, Androids, and iPhones

Security for your personal and business devices

Boutique business

Starts from

[ List Price ]/yr.

Protects 10 devices


Advanced antivirus protection against malware, ransomware, and more

Protection from malicious Websites and scams

Privacy from Wi-fi snoopers

Performance boost from adblocker

Protects PCs, Macs, Androids, and iPhones

Security for your team’s most critical devices

Save 35% today!

Small office

Starts from

[ List Price ]/yr.

[ Purchase Price ]/yr.

Protects 20 devices


Advanced antivirus protection against malware, ransomware, and more

Protection from malicious Websites and scams

Privacy from Wi-fi snoopers

Performance boost from adblocker

Protects PCs, Macs, Androids, and iPhones

Security for every device in your office, including personal devices

Trusted by millions worldwide

PC Mag: Best Brands 2026
Best of CNET Award
ZDNET Editors Choice 2026
MRG Effitas Top Consumer Protection
AVLab Product of The Year 2026
Parent Tested Certification Parent Approved

Don’t take our word for it

“We use Malwarebytes on all of our company computers. Our experience is that Malwarebytes is effective and trouble free.”

‒ Robin G.

Fort Worth, TX

“Malwarebytes provides an extra, invaluable layer protection against malicious data, and that makes me and our systems feel safer!”

‒ Billy H.

Sarasota, FL

“Eliminating hundreds of potential malware and trackers every week for our entire organization.”

‒ Raymond P.

Southfield, MI

Frequently asked questions

How can I scan my device for viruses for free?

What devices does the Malwarebytes free virus scanner support?

What is the difference between the free scanner and Malwarebytes Premium?

What are common signs that my device might have a virus?

Can I scan a specific file or folder with Malwarebytes?

Does the free version require the app to run in the background?

What threats does Malwarebytes Premium protect against?