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.
๐ Signs Your Computer Has Malware
๐ด Slow performance and frequent crashes
๐ด Unexpected pop-ups and ads
๐ด Programs opening or closing on their own
๐ด High CPU or disk usage
๐ด Unusual network activity
๐ 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)
๐ง 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 โ Advanced Options โ 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
๐ Step 3: Run a Full System Scan
Use a trusted antivirus or anti-malware tool like:
โ
Windows Defender (Built-in)
โ
Malwarebytes (Free & Paid)
โ
Bitdefender
โ
Norton Antivirus
How to Run a Scan in Windows Defender:
- Open Windows Security
- Click Virus & threat protection โ Scan options
- Select Full Scan and click Scan now
If threats are detected, follow the on-screen instructions to remove them.
๐ Step 4: Uninstall Suspicious Programs
Some malware disguises itself as legitimate software.
For Windows:
- Go to Control Panel โ Programs โ Uninstall a Program
- Look for unknown or suspicious apps
- Right-click and select Uninstall
For Mac:
- Open Finder โ Applications
- Drag unwanted apps to Trash
- Empty the Trash
๐ Step 5: Remove Malicious Browser Extensions
Malware can hijack your browser and install unwanted extensions.
For Chrome:
- Open Chrome โ Click Menu (โฎ) โ Extensions
- Remove any unknown or suspicious extensions
For Firefox:
- Click Menu (โก) โ Add-ons and Themes
- Remove unwanted extensions
๐ Step 6: Reset Your Browser Settings
If pop-ups or redirects persist, reset your browser:
For Chrome:
- Go to Settings โ Reset Settings
- Click Restore settings to their original defaults
For Firefox:
- Type about:support in the address bar
- Click Refresh Firefox
๐ก Step 7: Update Your Operating System and Software
Keeping your system updated prevents malware from exploiting security flaws.
- Windows: Go to Settings โ Update & Security โ Check for Updates
- Mac: Open System Settings โ General โ Software Update
๐ Step 8: Use a Firewall and Enable Real-Time Protection
โ
Enable Windows Firewall or use a third-party firewall
โ
Turn on real-time protection in your antivirus settings
โ
Avoid downloading software from untrusted websites