Microsoft Security Essentials

Microsoft Security Essentials (MSE) is a free antivirus software product created by Microsoft that provides protection against different types of malware such as computer virus, spyware, rootkits and trojan horses for most versions of Windows.

Microsoft Security Essentials uses both definition-file and real-time defenses against viruses and spyware, and also offers rootkit protection.

You can use a quick scan and full scan, but there is also a Custom scan option that lets users select specific folders or drives to scan. You can also set USB keys and other external devices to get scanned automatically.

It also has a Dynamic Signature Service which attempts to better identify malicious files by checking for updates if an application exhibits suspicious behavior.

Microsoft Security Essentials can be downloaded for free from the official Microsoft Website.

Key Features:

No trials, renewals, or expiration
No upselling to paid versions
Automatic updates and upgrades
Minimal PC impact
Simple user interface

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