Microsoft Defender: What Does It Do?

If you’ve used a Windows computer anytime in the last few years, you’ve probably seen Microsoft Defender running quietly in the background.

In 2026, Microsoft Defender is offered as a full security platform, designed to protect devices, identities, email, cloud apps, and more.

Microsoft Defender: What Does It Do?

At its core, Microsoft Defender still promises to protect laptops and desktops, from:

• Viruses

• Malware

• Ransomware

• Suspicious applications

• Exploits targeting software vulnerabilities

  
  

Is Microsoft Defender Enough?

For personal users, built-in Microsoft Defender provides baseline protection, when combined with good password habits and multi-factor authentication.

For businesses, properly managed protection is strategic.

Security tools are only as strong as their setup, monitoring, and response planning.

Ready to Know Where You Stand?

Security shouldn’t be a guessing game.

If you’re not completely confident in your current setup - or you’re unsure whether Microsoft Defender (or any other tool) is configured correctly - it’s time for a second look.

Let’s evaluate your environment together.

We’ll review your systems, identify gaps, and show you exactly where you’re strong and where you may be exposed. No scare tactics. No pressure. Just clear answers and practical solutions.

Whether you’re protecting a growing business or your personal devices, we’ll help you build a cybersecurity plan that actually fits your needs.

Contact Computer Corner today for a security evaluation, and move forward knowing your systems are protected, monitored, and working the way they should.