Users are experiencing issues with unwanted advertisements opening new browser windows, likely due to malware. The discussion emphasizes the importance of identifying the source of the problem, with recommendations to use MalwareBytes alongside existing antivirus software like AVG. Several users report success in removing malware with MalwareBytes, while others mention that other antivirus programs like Kaspersky and McAfee were ineffective. Participants stress the need for thorough system scans and suggest that malware can be widespread within a computer, making it challenging to locate manually. They highlight the importance of regular scanning and keeping anti-malware software active to prevent future infections. Some users clarify the different modes of operation for anti-malware programs, noting that real-time protection is essential for blocking threats while scheduled scans are necessary for removing existing malware. Overall, the consensus is to scan thoroughly, utilize specialized tools, and maintain ongoing protection against malware.