### Comment:
What are some common signs that a computer is infected with malware?

### REPLY:
When a computer is infected with malware, you may notice unusual behavior such as files being modified or deleted without your permission, strange messages or alerts appearing on the screen, and your antivirus software being disabled or unable to remove the detected threats. Additionally, sensitive information such as passwords, credit card details, or personal data may be stolen and used for malicious purposes.