Overview

Antivirus software protects your computer from malicious threats. Windows includes built-in protection, while Mac users may want additional software. This guide covers setup and initial scanning.

Step 1: Windows Defender (Built-In Protection)

Windows 10 and 11 include Microsoft Defender, which provides excellent free protection.

1

Check Windows Defender Status

2

Update Virus Definitions

Pro Tip:

Windows Defender updates automatically, but manually checking ensures you have the latest protection before scanning.

3

Run Quick Scan

4

Schedule Automatic Scans

Step 2: Installing Third-Party Antivirus (Optional)

Popular alternatives include Norton, Bitdefender, and Kaspersky. This example uses Bitdefender Free.

1

Download Antivirus Software

Warning:

Only download antivirus from official websites. Fake antivirus software is a common scam that actually infects your computer.

2

Run Installer

3

Initial Configuration

4

Run First Scan

Step 3: Mac Antivirus Protection

Macs include built-in security but third-party antivirus adds extra protection.

1

Check Built-In Mac Security

2

Install Mac Antivirus (Recommended)

Popular options: Malwarebytes (free), Bitdefender, Norton, Kaspersky.

3

Run First Mac Scan

Mac Security:

While Macs are less targeted than Windows, they're not immune to malware. Antivirus helps detect adware, spyware, and malicious files.

Step 4: Understanding Scan Types

1

Quick Scan

2

Full Scan

3

Custom Scan

4

What to Do If Threats Found

Multiple Threats Found:

If scan finds many threats, your system may be compromised. Back up important files, run full scan, and consider professional help if problems persist.

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