How to Scan for Malware in Windows 11

Malware can steal your personal information, slow down your internet, or damage your files. Scanning helps you find these threats early and remove them before they cause real trouble. By scanning, you ensure your system remains secure and performs at its best.

What happens when you are done?

Once the scan finishes, Windows will tell you if your computer is safe or if it found threats. If it finds something, it will automatically remove or quarantine the files to keep your computer healthy. You can then review these actions in the protection history.

How to run a scan in Windows 11

You can start a scan right from your settings menu.

1. Open your Settings by pressing the Windows key + I or by clicking Start then Settings.

2. Click on Privacy & security on the left side, then select Windows Security.

3. Click the Open Windows Security button.

4. Check your dashboard. If you see a green checkmark, your computer is protected. If you see a red X, follow the prompts to fix the issue.

5. Click on Virus & threat protection, then click Protection updates.

6. Click Check for updates to make sure your security tools have the latest information. %%LNK1%%

7. Go back to Virus & threat protection and select Quick scan.

Understanding Scan Types

Windows 11 offers different ways to check your PC. A Quick scan checks common areas where threats hide. A Full scan checks every file and program on your hard drive. Use the Microsoft Defender Offline scan if you suspect a stubborn virus that resists normal removal.

How to run an advanced scan

If you want a deeper look at your files, use an advanced scan.

1. Follow the steps above to get to Virus & threat protection.

2. Click on Scan options.

3. Select your choice and click Scan now.

Checking Protection History

After a scan, you should verify what was found. Go to Virus & threat protection and click Protection history. Here, you can see if any items were moved to quarantine or if a false positive occurred.

Troubleshooting Failed Scans

If a scan fails, ensure your Windows is fully updated. Check for pending updates in Settings > Windows Update. Also, ensure no other antivirus software is interfering with Microsoft Defender.

How to schedule scans (Requires Admin Privileges)

You can tell your computer to scan itself automatically.

1. Click Start and search for Task Scheduler.

2. In the folder list on the left, go to Task Scheduler Library > Microsoft > Windows, then double-click the Windows Defender folder.

3. Double-click Microsoft Defender Scheduled Scan in the middle window.

4. Go to the Triggers tab and click New.

5. Set how often you want the scan to run and click OK.

Summary

Regularly scanning your computer keeps it safe from malicious software. Use the Quick scan for routine checks and the Advanced scan if you suspect a deeper problem. Always keep your security intelligence updates current and use the Task Scheduler to automate your security. Staying proactive is the best way to keep your data secure.