Microsoft Security Essentials
A newer version of Microsoft Security Essentials is available.
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Full user review
"Award winning AV"
Excellent easy to use set and forget Antivirus ,tested by many independent testing organizations such as virusbulletin avcomparatives which test most popular AV programs against thousands of viruses,trojans and other malware.
MSE is as good if not better than the so called best paid antivirus programs it has great detection rates and rated the top antivirus program with the lowest false postives (this is when some AV programs detect good legit files and delete/quarantine them as virus/ malware ).
None my desktop computer and x2 laptops are clean ,used free online scanner from other AV companies such as ESET nothing new detected
Bought paid antivirus programs in the past tried MSE when the 1 year licences expired on my computers and it is doing just as good of a job detecting removing malware viruses even found malware on 1 computer another popular for paid AV programs missed when i installed this than done the first scan.