Microsoft Security Essentials (64-bit)
A newer version of Microsoft Security Essentials (64-bit) is available.
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Full user review
"Slams the barn door shut after the horse already left."
Free and decent interface but not as many options, features and protections as others.
Doesn't react to immediate threats. Lets the computer get infected and then it tells you its infected!!!
MSE is a small department in a great big software and operating system Company that benefits economically when you upgrade to their newest, allegedly "more secure" platforms. Hackers consider hacking all things Microsoft, including their Antivirus, to be a worthy challenge and abundantly available for hacking.
The real test of an antivirus is if you can confidently access websites that are known to be high risk and can get away unscathed. Microsoft Security Essentials will get you away, but you'll be scathed and then you better have some good computer skills to get the system back to where it should be before the threat does more harm. Appears to be lacking in features that render an infection powerless. Otherwise, why would there be the need for such an alarming warning? Just fix it and tell me about it, not tell me about it and tell me to fix it.