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Malwarebytes for Windows

Malwarebytes 4 is smarter, faster, and lighter than ever before. Go beyond antivirus and stop worrying about online threats.

FREE DOWNLOAD See pricing

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Cleans your PC

Cleans your PC in just a few minutes

Our free scanner is what put us on the map. It doesn’t just find threats like malware and viruses, it also finds potentially unwanted programs that can slow you down.

Cleans your PC in just a few minutes

Cleans your PC

Our free scanner is what put us on the map. It doesn’t just find threats like malware and viruses, it also finds potentially unwanted programs that can slow you down.

Secures your PC, files, and privacy 24/7

Real-Time Protection uses artificial intelligence and machine learning to keep you safe from online threats, even emerging threats that no one has ever seen before.

Secures your PC

Secures your PC, files, and privacy 24/7

Secures your PC

Real-Time Protection uses artificial intelligence and machine learning to keep you safe from online threats, even emerging threats that no one has ever seen before.

online scammers

Protects against online scammers

Web Protection blocks online scams, infected sites, and malicious links. It also blocks phishing scams, which use fake sites to trick you into revealing private info like your bank details.

Protects against online scammers

online scammers

Web Protection blocks online scams, infected sites, and malicious links. It also blocks phishing scams, which use fake sites to trick you into revealing private info like your bank details.

Stops ransomware

Stops ransomware

Ransomware Protection uses proprietary tech to create a powerful defense against malware that locks down your PC and takes your files and photos hostage.

Respects your space

Respects your space

Scans now use 50 percent less CPU resources than before, and with Play Mode, you can even turn off notifications and updates while you game or watch movies.

Makes your security simple

Makes your security simple

Our all-new user interface makes it easier than ever to customize your protection. Schedule scans, adjust protection layers, and choose from three scan modes.

Malwarebytes
Katana Engine

Our all-new detection engine finds more threats, in less time, with less performance impact than ever before. It also tells you more about threats it finds, like their type and behavior, so you can make smarter security decisions. For example, instead of seeing a generic threat name like “Malware123,” you'll see a name like “Spyware.PasswordStealer,” along with a link to information about that specific threat.

  • Cleans up an already-infected computer
  • Protects your identity and privacy from hackers
  • Protects your documents, financial files from ransomware
  • Protects you from malicious and fraudulent websites
  • Stops malware that degrades computer performance
  • Crushes malware attacks that corrupt your programs
  • Suspends Malwarebytes notifications while you game

Malwarebytes Free

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  • Expires after 14 days
  • Expires after 14 days
  • Expires after 14 days
  • Expires after 14 days
  • Expires after 14 days
  • Expires after 14 days

Malwarebytes Free

Cleans up an already-infected computer

green check
Expires after 14 days:

Protects your identity and privacy from hackers

Protects your documents, financial files from ransomware

Protects you from malicious and fraudulent websites

Stops malware that degrades computer performance

Crushes malware attacks that corrupt your programs

Take a look inside

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Full protection or simple cleanup?

The free version of Malwarebytes for Windows is great for getting rid of existing infections, but some infections, like ransomware, only need a moment to wreak havoc on your PC. To stop infections before they happen, stay one step ahead with the Real-Time Protection of Malwarebytes Premium.

Full protection or simple cleanup

Don't take our word for it

“Malwarebytes gives me a sense of protection and let's me stay confident that my systems are being kept safe. I can even relax about my kids surfing habits knowing we have a solid layer of security keeping an eye on things.”

Brian H

Saskatoon, Canada

“Honestly, it is the first Antivirus that I have ever used that has given me full peace of mind. I had tried so many others and had never felt compelled to purchase the product beyond the trial until I heard of Malwarebytes through a friend.”

Torjus H

Flåm, Norway

“The main thing is that I can be sure that by installing Malwarebytes on friends and families devices I don't need to constantly fix their malware-problems.”

Mark T

Brisbane, USA

Tech specs

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Software requirements

Windows 10 (32/64-bit)

Windows 8.1 (32/64-bit)

Windows 8 (32/64-bit)

Windows 7 (32/64-bit)

Active Internet connection

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Hardware requirements

800MHz CPU or faster, with SSE2 technology

2048 MB (64-bit OS), 1024 MB (32-bit OS)

250 MB of free hard disk space

1024x768 or higher screen resolution

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Languages supported

Bulgarian, Chinese (Traditional), Czech, Danish, Dutch, English, Finnish, French, German, Hungarian, Italian, Japanese, Korean, Norwegian, Polish, Portuguese, (Brazil), Portuguese (Portugal), Romanian, Russian, Slovak, Slovenian, Spanish, Swedish.

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Version

Click here to view our full history.

*The anti-ransomware protection component is only available on Windows 7 or higher.

Need support? Visit Malwarebytes for Windows support.

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