An individual has reported frequent alerts indicating their system is infected with multiple viruses. These prompts advise urgently clicking a link to resolve the issues. A review reveals no authentic antivirus software is present. What is the INITIAL step to be taken in reaction to these signs?
Ensure all authorized software on the computer is up to date.
Execute a scan for malware using any installed security software.
Locate and remove any fake antivirus programs installed.
Reach out to a cybersecurity expert for assistance.