A technician successfully removed malicious software from an infected computer after running updates and scheduled scans to mitigate future risks. Which of the following should the technician do next?

User education on security best practices is a vital preventative measure that addresses human factors which often contribute to malware infections, helping to prevent recurrence after a system has been cleaned.

The host should have already been isolated or quarantined during the initial phases of incident response, not after the malware has been successfully removed.

Investigating the root cause of the infection is an important step, but often occurs before or concurrently with remediation, or as part of a deeper post-incident analysis, but user education is a direct and immediate action to prevent re-infection.

Creating a system restore point is a good general practice for system recovery, but it is not the immediate next step specifically related to preventing future malware infections after remediation and updates.