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Protect Your Data: Enable Ransomware Protection in Windows 11

Richard
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Richard
Jul 25, 2021 Updated Apr 14, 2026 2 min read

Ransomware is a type of malicious software that locks your files and demands payment to get them back. Protecting your data is essential. Windows 11 has a built-in feature called Controlled Folder Access that stops unauthorized programs from changing your important files.

Why enable ransomware protection?

Criminals use ransomware to hold your personal documents, photos, and work files hostage. By turning on this protection, you add a layer of security that acts as a gatekeeper for your folders.

What happens when you are done?

Once enabled, your computer will block suspicious apps from modifying your files. You will have more control over which programs can access your data, and your files will be safer from digital extortion.

We recently shared a guide on how to secure your computer using Microsoft Security.

How to enable controlled folder access

Follow these steps to secure your files:

  1. Open Settings by pressing the Windows key + I on your keyboard.
  2. Select Privacy & Security from the left menu, then click Windows Security.
Windows 11 Settings menu for accessing security and system configurations

Note: Administrative privileges are required to change security settings.

  1. Click the Open Windows Security button.
Windows 11 Privacy and Security settings menu for ransomware protection
Clicking the Open Windows Security button in Windows 11 settings


  1. Click on Virus & threat protection in the menu on the left.
  2. Scroll down to the bottom and click Manage ransomware protection.
Virus and threat protection menu showing Manage ransomware protection link

  1. Toggle the switch to On to enable protection.
Enabling Controlled folder access to protect files from ransomware attacks

Managing your protected folders

Windows automatically protects your main home folders. You can see which folders are covered by clicking Protected folders. You can add your own folders by clicking Add a protected folder.

Managing protected folders list within Windows 11 ransomware protection settings

If a legitimate program you trust is blocked, you can check the Block history to allow it access.

Backing up with OneDrive

It is always smart to keep a backup. Using OneDrive allows you to restore your files if the worst happens. %%LNK1%% to learn how to set up your backups.

OneDrive file recovery options for restoring data after ransomware incidents

Summary

  • Enable Protection: Use the Windows Security settings to turn on Controlled folder access.
  • Customize: Add specific folders to the protected list to keep them safe.
  • Check History: If an app stops working, check your block history to give it permission.
  • Use Backups: Always keep a backup of your data using OneDrive.

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Tags: #Windows 11
Richard

About the Author

Richard

Tech Writer, IT Professional

Richard, the owner and lead writer at Geek Rewind, is a tech enthusiast passionate about simplifying complex IT topics. His years of hands-on experience in system administration and enterprise IT operations have honed his ability to provide practical insights and solutions. Richard aims to make technology more accessible and actionable. He's deeply committed to the Geek Rewind community, always ready to answer questions and engage in discussions.

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