Final answer:
An anti-virus software can protect your device by detecting, preventing, and removing malicious software, also known as viruses. It scans your device for virus patterns and suspicious behavior, and takes necessary actions to protect your device.
Step-by-step explanation:
An anti-virus software can protect your device by detecting, preventing, and removing malicious software, also known as viruses. It does this by scanning your device for known virus patterns and suspicious behavior. When a virus is detected, the anti-virus software can quarantine or delete the infected file to prevent further damage.
For example, let's say you unknowingly download a file infected with a virus. When you run a scan with your anti-virus software, it will identify the virus and take necessary actions to protect your device. This can include isolating the infected file, disinfecting it, or deleting it entirely.
By regularly updating your anti-virus software and running scans, you can ensure that your device is protected from various types of malware, such as viruses, worms, Trojans, and ransomware.