A suite of security applications was installed a few days ago on a user's home computer. The user reports that the computer has been running slowly since the installation. The user notices the hard drive activity light is constantly solid. Which of the following should be checked FIRST?


A. Services in Control Panel to check for overutilization
B. Performance Monitor to check for resource utilization
C. System File Checker to check for modified Windows files
D. Event Viewer to identify errors