A virus on your laptop is malicious software that disrupts operations, steals data, or displays unwanted ads. To clean it, run a full scan with reputable antivirus software, remove detected threats, and restore affected files from backups.
Viruses attach themselves to clean files and spread when those files are shared or opened. They can corrupt data, slow performance, or create backdoors for hackers. Some viruses, like ransomware, encrypt files and demand payment for decryption.
| Type | Behavior | Example |
|---|---|---|
| Boot Sector Virus | Infects the boot sector of hard drives, preventing the operating system from loading | Stoned virus |
| Macro Virus | Attacks files created with Microsoft Office applications | Melissa virus |
| Resident Virus | Embeds itself in the RAM and executes each time the computer boots | CIH virus |
| Polymorphic Virus | Changes its code each time it replicates to avoid detection | W32.Beagle.A@mm |
Slow performance, frequent crashes, unexpected pop-ups, and unfamiliar programs running are typical signs. Your laptop may also struggle to shut down or restart properly.
Install reliable antivirus software and keep it updated. Avoid downloading suspicious files or clicking on unknown links. Regularly back up important data to external drives or cloud storage.