Microsoft Defender (built-in)Scan a Windows computer for malware and manage its built-in security protection.
Included with Windows
Antivirus & protection
Free alternatives to Malwarebytes
Find a free app for the parts of Malwarebytes you actually use.
Compare the free allowance and limitations on each app’s page. These are workflow alternatives, rather than identical copies.
Free options
Suggest an alternative →Microsoft Defender (built-in)
ClamAVScan files and email attachments for malware using local antivirus tools.
Everything