Malwarebytes for Windows

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

FREE DOWNLOADSee pricing

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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Malwarebytes Free

Cleans up an already-infected computer

green check

Protects your identity and privacy from hackers

green check

Protects your documents, financial files from ransomware

green check

Protects you from malicious and fraudulent websites

green check

Stops malware that degrades computer performance

green check

Crushes malware attacks that corrupt your programs

green check

Suspends Malwarebytes notifications while you game

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Take a look inside

Dashboard
Real Time Protection
Scanner
Scan-summary
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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.

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

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

Gear Icon

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

Hardware Requirements Icon

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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