The correct answers are E. Windows Defender and A. File Explorer. Windows Defender is a built-in antivirus program that can detect and remove malicious software from a workstation. File Explorer can be used to locate and delete files associated with the malicious software1

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The technician should use the File Explorer application to assist the user with hiding the file 1. The user can right-click the file and select Properties. In the Properties dialog box, select the Hidden check box, and then click OK 1.

The BEST way to secure the workstation quickly when walking away is to use a key combination to lock the computer when leaving1

The technician should not proceed with initiating a full scan and removal of the viruses using the presented interface or call the phone number displayed in the interface of the antivirus removal tool12 Shutting down the infected computer and swapping it with another computer is not necessary at this point12 The technician should not immediately assume that the message is legitimate or perform any actions without knowing what the interface is and what triggered it to pop up. It is important to investigate the issue further, including checking the legitimacy of the antivirus program and the message it is displaying.