🛡️ Fix Ransomware Protection

Last updated: October 26, 2025

Protect your files from ransomware with Controlled Folder Access, Windows Defender settings, OneDrive recovery, offline backups, File History and alerts.

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What this helps with

What to expect: Medium difficulty • usually about 30-45 minutes.

This is one of 30 Security & Privacy fixes in the WindowsHelper library. The full step-by-step fix for this is in the WindowsHelper app.

Related fixes in Security & Privacy

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  Harden Outlook and the Mail app with email encryption, stronger spam and phishing filters, app passwords, backups and alerts for suspicious sign-ins.

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• 🌐 Configure Browser Security Settings

  Tighten browser security: HTTPS-only mode, tracking protection, cookie and site permissions, safe browsing, pop-up and download blocking.

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• 🔧 Fix VPN Configuration Issues

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• 🛡️ Fix Windows Defender Threat Service

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• 🔐 Password Management

  Manage passwords on Windows: Windows Hello sign-in, Credential Manager, browser AutoFill, Microsoft Authenticator, strong passwords and local password rules.

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• 🔒 Privacy Settings

  Set up Windows privacy: the privacy dashboard, app permissions for camera, mic and location, telemetry, search and account privacy, and policy-level settings.

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• 🛡️ Respond to Data Breach Notifications

  Got a data breach notice? Check that it is real, secure the affected accounts, enable two-factor verification, review account activity and secure your PC.

  Medium30-45 minutes
• 🗑️ Secure File Deletion

  Delete files so they cannot be recovered: skip the Recycle Bin, overwrite free space, securely erase files or whole drives, and check that they are really gone.

  Medium30-45 minutes
• 🏠 Secure Home Network Setup

  Secure your home network: lock down the router and Wi-Fi, turn on the firewall, set up secure name resolution, control sharing and spot unknown devices.

  Medium30-45 minutes
• 🛡️ AI-Resistant Phishing Protection

  Guard against AI-written phishing with enhanced phishing protection, browser and email filters, DNS-level blocking and a plan for when you click a bad link.

  Medium45-60 minutes

You might also run into

• 🛡️ Fix Antivirus Blocking Games

  Fix antivirus and security software blocking games, anti-cheat, and game files

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• 🛡️ Recover from Malware Infections

  Clean up after malware: full and offline Defender scans, a second-opinion scanner, removing suspicious programs and browser hijackers, or resetting Windows.

  Medium45-60 minutes
• 🛡️ Resolve Antivirus Software Conflicts

  Antivirus blocking programs or clashing with another security app? Add exclusions, test with protection paused, update definitions or remove the extra one.

  Medium30-45 minutes
• Ransomware Recovery with Cloud Storage

  Recover files encrypted by ransomware using cloud storage version history. Covers OneDrive restore, Google Drive versions, Dropbox rewind, and prevention strategies.

  Medium30-60 minutes