On earlier versions of Windows client and server you could install Microsoft Security Essentials, free antivirus from Microsoft. In Windows 8 client, it is integrated into Windows Defender. However, I ...
Possible Duplicate: How to add the Windows defender into Windows Explorer’s right click menu to scan a particular drive/folder/file on demand? From what I understand, Windows 8's version of ...
What is the difference between Windows Defender on Windows 8 and Microsoft Security Essentials? They practically look alike, so is there a need to install Security Essentials?
What is the difference between these three products? Malicious Software Removal Tool Windows Defender Microsoft Security Essentials
MsMpEng.exe (Windows Defender?) uses a lot of CPU at startup and runs two instances on a single core machine
I'm using Windows XP Professional SP2 on a single core AMD64 processor, and I've got two instances of MsMpEng.exe starting up when I start up and log in. They use 64MB and 32MB of ram and 140MB and ...