Introduced in September 2009, Microsoft Security Essentials (MSE) replaced Microsoft's antivirus subscription service (see Windows Live OneCare) and its Defender antispyware software (see ...
Times have changed, and third-party antivirus software is no longer a necessity. Here's why I only use Windows Security, plus ...
Microsoft Security Essentials 4.0 does a decent job protecting a clean PC, but in testing its cleanup of already-infested systems wasn't thorough. You can get better protection for the same price.