A malware infection occurs when malicious software infiltrates a system, compromising its integrity and security. To eradicate malware, one must use antivirus software to detect and remove the infection. Regular scanning, updating software, and maintaining firewalls are essential preventive measures. Additionally, practicing safe browsing habits, such as avoiding suspicious links and downloads, helps minimize the risk. In more severe cases, restoring the system using a clean backup or reinstalling the operating system may be necessary to fully cleanse the malware and ensure system safety.