Which of the following steps should be performed in order to optimize a system performance? Each correct answer represents a complete solution. Choose three.

Running anti-spyware removes malicious programs that consume CPU cycles, memory, and network bandwidth, directly improving system responsiveness.

Defragmenting the hard disk reorganizes fragmented file clusters so the read/write head travels less distance, improving file access speeds on mechanical drives.

Manually editing the registry is not a routine optimization task and carries significant risk of system instability or complete failure if keys are incorrectly modified or deleted.

Deleting temporary files frees disk space and reduces the number of files the OS must index and manage, improving overall performance.