When a user reports slow performance, a changed home page, and pop-up ads, these are classic signs of malware infection. The first step should be:
* Update the antivirus program and run a full system scan:This helps identify and remove any malware present on the system, addressing the root cause of the issues.
* Uninstall the suspicious search engine and reset the home page:This addresses the symptom but not the underlying cause, which is likely malware.
* Install the latest updates for the operating system:Important for security but secondary to removing malware.
* Block the pop-up ads using the web browser settings:Again, addresses the symptom but not the root cause.
Reference:
CompTIA A+ 220-1102 Exam Objectives, Section 3.3: Given a scenario use best practice procedures for malware removal.
Malware identification and removal documentation.