CompTIA A+ 220-1102 Practice Question

Disconnecting the system from network connections is the critical initial step to prevent the malware from spreading to other systems or accessing network resources. This action effectively isolates the infected computer, helping to halt any potential communication with other systems or external control from attackers. Although updating antivirus definitions and performing a system scan are important subsequent steps, they do not immediately address the risk of the malware communicating with other systems. Reformatting the system drive or creating a restore point should only be considered once the system is secured and the extent of the infection assessed.