After identifying malware on a user's system, what is the next step according to malware removal best practices?

After identifying malware on a user's system, the next step according to malware removal best practices is to move the infected system to a lab with no network connectivity. This is crucial because isolating the infected machine prevents the malware from spreading to other systems or networks. By disconnecting the system from the internet and other connected devices, you minimize the risk of data exfiltration, further infections, or disruptions to other systems.

In this context, the other choices, while important steps in the overall malware removal process, would not be prioritized immediately after detection. Enabling System Restore and creating a restore point is useful for recovery, but it does not directly address the active threat. Educating the user on avoiding malware is a key preventative measure for the future but comes after containment of the current infection. Updating antivirus software and performing a full system scan is an essential action, but it should be done after isolating the system. This ensures that the antivirus can effectively address the malware without interference from network communications or additional spread.