human
How do I know if my computer is infected with a virus?
assistant
Check your antivirus software for any alerts. If you find anything, take the necessary steps to remove it. 2 Look out for unusual activity on your computer such as slow performance or programs running in the background. 3 Scan your computer with an online anti-virus scanner and see if it detects any viruses. 4 If you are still unsure, consult a professional computer repair service to help diagnose the issue.