A technician is in the process of removing a recently discovered Trojan horse application from a users laptop.
Which of the following should the technician complete to prevent reinfection of the same machine?
A . Reenable Windows System Restore after rebooting the device
B . Research the symptoms to identify the threat.
C . Update the operating system and anti-malware signatures.
D . Isolate the infected machine from all networks.
Answer: C