A Home User Reports Slow Computer Performance and Application Crashes

Multiple Choice

A home user reports slow computer performance and application crashes after clicking a "repair" button on a pop-up warning while browsing the Internet. Which of the following are the FIRST steps a technician should take to identify and resolve the issue? (Choose two.)

A) Perform a system file check and replace any changed files with their original versions
B) Enable the pop-up blocker on the Internet browser
C) Uninstall any recently installed unknown programs and browser extensions
D) Perform a hard shutdown and cold boot the computer
E) Scan the RAM and hard drive using an up-to-date antivirus program