A user reports slow internet browsing.

High resource usage along with frequentpop-upsare strong signs of amalware infection. The next logical step is toupdate anti-malware definitionsandrun a full scanto detect and remove threats.

Option A:Network performance is likely not the root cause — local system behavior points to malware.

Option B:Drivers affect hardware functionality; they don’t resolve malware-related slowness.

Option D:DHCP issues usually cause IP conflicts or no network access, not CPU spikes or pop-ups.

CompTIA A+ Core 1 Exam Objective Reference:

Objective 4.2: Given a scenario, detect, remove, and prevent malware using appropriate tools and methods.