How to Delete Virus from Laptop: A Complete Guide

Viruses and malware can significantly slow down your laptop, steal personal information, or even cause system crashes. If you suspect that your laptop is infected, don't worry! This guide will help you remove viruses effectively and keep your laptop secure.

What is a Virus?

A computer virus is a type of malicious software (malware) designed to replicate itself and spread from one device to another. It can attach itself to legitimate programs or files and execute harmful activities like corrupting data, stealing personal information, or disrupting system performance. Viruses often spread through:

✔ Malicious email attachments ✔ Infected software downloads ✔ Unsafe websites and pop-ups ✔ External storage devices (USB drives, external hard disks)

Understanding how viruses spread can help you prevent infections before they occur.

Signs Your Laptop Has a Virus

Before we dive into virus removal, let’s look at some common signs that indicate a virus infection:

✔ Slow performance and frequent crashes ✔ Unexpected pop-ups or ads appearing frequently ✔ Unusual error messages or programs opening on their own ✔ High CPU or disk usage without any reason ✔ Internet browser redirects or unwanted toolbars ✔ Files disappearing or new unknown files appearing

If you experience any of these issues, it’s time to scan and remove the virus from your laptop.

Step-by-Step Guide to Remove a Virus from Your Laptop

Step 1: Boot in Safe Mode

Safe Mode allows you to start your laptop with minimal programs running, preventing viruses from spreading further.

How to enter Safe Mode in Windows 10 & 11:

1. Press Win + R and type msconfig, then press Enter.
2. Go to the Boot tab and check Safe Boot.
3. Click OK, then restart your laptop.

For Mac users:

1. Restart your Mac and hold Shift until the Apple logo appears.
2. Release the Shift key when the login window appears.

Step 2: Run a Full System Scan Using Antivirus Software

Once in Safe Mode, run a full system scan using reliable antivirus software. Some of the best free and paid antivirus tools include:

Windows Defender (Built-in for Windows 10 & 11) Malwarebytes (Great for removing malware and adware) Avast Free Antivirus Bitdefender Antivirus Norton 360

Steps to run a full scan on Windows Defender:

1. Open Windows Security by searching in the Start menu.
2. Click Virus & Threat Protection.
3. Select Scan Options > Full Scan > Scan Now.
4. Let the scan complete and follow the removal instructions.

Step 3: Remove Suspicious Programs Manually

Sometimes, viruses install unknown software that should be removed manually.

For Windows Users:

1. Go to Control Panel > Programs & Features.
2. Look for suspicious programs you didn’t install.
3. Select the program and click Uninstall.

For Mac Users:

1. Open Finder > Applications.
2. Find unwanted applications, right-click, and Move to Trash.

Step 4: Delete Temporary Files and Clean Your Laptop

After removing viruses, clear all temporary files to ensure no remnants are left.

For Windows:

1. Open Run (Win + R) and type %temp%.
2. Press Enter and delete all files in the folder.
3. Empty the Recycle Bin.

For Mac:

1. Open Finder and go to ~/Library/Caches.
2. Delete unnecessary cache files.

Step 5: Reset Browser Settings

If your browser is acting strange (redirects, pop-ups, or unwanted extensions), reset it.

For Google Chrome:

1. Open Chrome Settings (chrome://settings/reset).
2. Click Restore settings to their original defaults.

For Mozilla Firefox:

1. Open Firefox and type about:support in the address bar.
2. Click Refresh Firefox.

Step 6: Enable Real-Time Protection & Update Windows

To prevent future infections, always keep your system updated and enable real-time protection.

Update Windows:

1. Open Settings (Win + I).
2. Click Update & Security > Windows Update > Check for Updates.

Enable Real-Time Protection:

1. Open Windows Security.
2. Click Virus & Threat Protection.
3. Turn on Real-time Protection.

Which Antivirus Should You Install and Why?

Choosing the right antivirus software is crucial for keeping your laptop secure. Here are some of the best options and why they are recommended:

✔ Windows Defender (Microsoft Defender Antivirus) - Free, built-in for Windows, offers real-time protection, and is lightweight. ✔ Malwarebytes - Best for removing malware, adware, and spyware. ✔ Bitdefender Antivirus Plus - Strong security features, minimal system impact, and great for real-time protection. ✔ Norton 360 - Comprehensive security with VPN, password manager, and cloud backup. ✔ Avast Free Antivirus - Free with good malware detection but comes with ads. ✔ McAfee Total Protection - Great for multiple devices and offers identity theft protection.

For everyday users, Windows Defender is a solid choice. If you need extra protection to delete virus from laptop, Malwarebytes or Bitdefender is recommended.

Best Practices to Keep Your Laptop Virus-Free

Once your laptop is clean, follow these security tips to stay protected:

✔ Avoid downloading unknown files or software ✔ Do not click on suspicious links or email attachments ✔ Use strong passwords and enable two-factor authentication ✔ Install ad blockers to prevent malicious pop-ups ✔ Backup your important files regularly ✔ Use a premium antivirus for extra protection

Final Thoughts

By following these steps, you can successfully remove viruses from your laptop and keep it protected from future threats. Regular maintenance and safe browsing habits will ensure your laptop stays fast and secure.

If you found this guide helpful, share it with your friends and family to help them keep their laptops virus-free.