Free Antivirus Software for Microsoft

With Microsoft Security Essentials, you get high-quality protection against viruses and spyware, including Trojans, worms and other malicious software. Security Essentials is easy to install and easy to use. Updates and upgrades are automatic, so there's...

Microsoft Windows Malicious Software Removal Tool (64-Bit) checks Windows Vista, WIndows 7, Windows XP, Windows 2000, and Windows Server 2003 computers for and helps remove infections by specific, prevalent malicious software--including Blaster, Sasser,...

Microsoft Windows Malicious Software Removal Tool checks Windows Vista, WIndows 7, Windows XP, and Windows Server 2003 computers for and helps remove infections by specific, prevalent malicious software--including Blaster, Sasser, and Mydoom. When the...

Free and simple antivirus software from Microsoft. Easy to install and use, Automatic updates, Several scan types, Light and unobtrusive. Doesn't disinfect files, Too basic for expert users, No...

Windows Defender Offline is a standalone software application that is designed to help detect malicious and other potentially unwanted software, including rootkits that try to install themselves on a PC. The primary benefit of using this tool is that it...

Windows Defender Offline is a standalone software application that is designed to help detect malicious and other potentially unwanted software, including rootkits that try to install themselves on a PC. The primary benefit of using this tool is that it...

A Free Limited-Time Virus Scanner. It may isolate your problem so your computer may be fixed by other means, As a last-ditch attempt to save your computer it may work, It is a powerful and free virus checker for people in real trouble,. Getting it to load...

I trust that the majority of users have an antivirus installed and use it regularly. At least, I hope you do, because Windows Malicious Software Removal Tool isn't a replacement for one. It's a complementary tool, or at least one to use only in very...