Malware infections can slow down your computer, steal your data, and compromise your security. If you suspect your computer is infected, follow this step-by-step guide to remove malware safely.
🛑 Signs Your Computer Has Malware
🔴 Slow performance and frequent crashes
🔴 Unexpected pop-ups and ads
🔴 Programs opening or closing on their own
🔴 High CPU or disk usage
🔴 Unusual network activity
🔍 Step 1: Disconnect from the Internet
To prevent malware from spreading or stealing more data:
- Turn off Wi-Fi or unplug your Ethernet cable
- Restart your computer in Safe Mode (explained below)
🔧 Step 2: Boot into Safe Mode
Safe Mode runs only essential system files, blocking malware from running.
For Windows:
- Restart your PC and hold Shift while clicking Restart
- Go to Troubleshoot → Advanced Options → Startup Settings
- Select Enable Safe Mode with Networking
For Mac:
- Restart your Mac and hold Shift until you see the Apple logo
- Release Shift when the login screen appears
🛠 Step 3: Run a Full System Scan
Use a trusted antivirus or anti-malware tool like:
✅ Windows Defender (Built-in)
✅ Malwarebytes (Free & Paid)
✅ Bitdefender
✅ Norton Antivirus
How to Run a Scan in Windows Defender:
- Open Windows Security
- Click Virus & threat protection → Scan options
- Select Full Scan and click Scan now
If threats are detected, follow the on-screen instructions to remove them.
🗑 Step 4: Uninstall Suspicious Programs
Some malware disguises itself as legitimate software.
For Windows:
- Go to Control Panel → Programs → Uninstall a Program
- Look for unknown or suspicious apps
- Right-click and select Uninstall
For Mac:
- Open Finder → Applications
- Drag unwanted apps to Trash
- Empty the Trash
🔍 Step 5: Remove Malicious Browser Extensions
Malware can hijack your browser and install unwanted extensions.
For Chrome:
- Open Chrome → Click Menu (⋮) → Extensions
- Remove any unknown or suspicious extensions
For Firefox:
- Click Menu (≡) → Add-ons and Themes
- Remove unwanted extensions
🔄 Step 6: Reset Your Browser Settings
If pop-ups or redirects persist, reset your browser:
For Chrome:
- Go to Settings → Reset Settings
- Click Restore settings to their original defaults
For Firefox:
- Type about:support in the address bar
- Click Refresh Firefox
🛡 Step 7: Update Your Operating System and Software
Keeping your system updated prevents malware from exploiting security flaws.
- Windows: Go to Settings → Update & Security → Check for Updates
- Mac: Open System Settings → General → Software Update
🔐 Step 8: Use a Firewall and Enable Real-Time Protection
✅ Enable Windows Firewall or use a third-party firewall
✅ Turn on real-time protection in your antivirus settings
✅ Avoid downloading software from untrusted websites
