Many companies, including those listed on this page, distribute antimalware software. Just click the company name to see the Windows-compatible product they offer.įor business security software that is compatible with Windows, please contact your security vendor of choice. Should you wish to explore alternatives to the already installed or available Microsoft antimalware software on your Windows PC, the reputable security companies listed below provide consumer security software that is compatible with Windows. Hackers and scammers sometimes use fake antimalware software to trick you into installing viruses or malware on your computer. Microsoft Defender Antivirus is free and is included in Windows, always on and always working to protect your PC against malware.

Malware consists of viruses, spyware and other potentially unwanted software. If you’re running a supported version of Windows, you’ve already got Microsoft Defender Antivirus built in, helping to protect you against viruses, spyware, and other malware.

Microsoft defender free