A user reports a virus is on a PC. The user installs additional real-time protection antivirus software, and the PC begins performing extremely slow. Which of the following steps should the technician take to resolve the issue?


A. Uninstall one antivirus software program and install a different one.
B. Launch Windows Update, and then download and install OS updates.
C. Activate real-time protection on both antivirus software programs.
D. Enable the quarantine feature on both antivirus software programs.
E. Remove the user-installed antivirus software program.