Protects your identity and privacy from hackers
Malwarebytes for Windows
Malwarebytes 4.0 is smarter, faster, and lighter than ever before. Go beyond antivirus and stop worrying about online threats.
What Malwarebytes 4.0 does for you
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.
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.
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.
Stops your files from being held for ransom
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
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
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.
Introducing… The 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.
Take a look inside
Don't take our word for it
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.
Tech specs
Software requirements
Windows 10 (32/64-bit)
Windows 8.1 (32/64-bit)
Windows 8 (32/64-bit)
Windows 7 (32/64-bit)
Windows Vista (Service Pack 1 or later, 32/64-bit)*
Windows XP (Service Pack 3 or later, 32-bit only)*
Active Internet connection
Hardware requirements
800MHz CPU or faster, with SSE2 technology
2048 MB (64-bit OS), 1024 MB (32-bit OS, except 512 MB for Windows XP)
250 MB of free hard disk space
1024x768 or higher screen resolution
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.
*The anti-ransomware protection component is only available on Windows 7 or higher