Virus

What is a Virus?

A computer virus is a type of malicious software designed to infect a computer, spread to other files or systems, and cause harm. It often attaches itself to legitimate programs or files and runs when the user opens or executes them. Viruses can slow down your computer, steal information, damage files, or allow hackers to access your system.

What a Computer Virus Can Do:

• Slow computer performance

• Unwanted pop-ups or ads

• Programs opening or closing by themselves

• Files disappearing or becoming corrupted

• Unknown programs are being installed

• Browser redirects to strange websites

• Stolen personal or financial information

Many viruses today fall under broader categories like malware, spyware, ransomware, or trojans.

How Computers Get Viruses:

• Viruses usually enter a computer through:

• Opening infected email attachments

• Downloading software from unsafe websites

• Clicking on malicious links

• Installing pirated software

• Infected USB drives

• Fake software updates

How to Remove a Computer Virus

1. Disconnect from the Internet
This prevents the virus from spreading or communicating with attackers.

2. Run Antivirus or Malware Scans
Use trusted security software such as:

• Malwarebytes

• Microsoft Defender Antivirus

• Bitdefender Antivirus

Run a full system scan, not just a quick scan.

3. Remove Detected Threats

Follow the prompts to quarantine or delete infected files.

Restart the computer afterward if required.

4. Remove Suspicious Programs

Check installed programs and uninstall anything unfamiliar.

On Microsoft Windows:
Settings → Apps → Installed Apps

On macOS:
Applications folder → Move suspicious apps to Trash

5. Update Your System

Install the latest updates for your operating system and software to close security holes.

6. Change Important Passwords

If the virus involved spyware or hacking tools, change passwords for:

• Email

• Banking

• Online accounts
  
  

Signs You Should Get Professional Help

Sometimes viruses are difficult to remove. You may need professional help if:

• The computer keeps getting reinfected

• Antivirus software will not run

• Files are encrypted (ransomware)

• The system will not boot properly

💡 Good prevention habits

• Keep your system updated

• Use antivirus protection

• Avoid unknown downloads

• Backup important files regularly