An employee reports that their Windows workstation has become increasingly slow over time, especially when launching applications. The workstation has a hard disk drive, 4 core CPU and 6GB of memory. After initial troubleshooting, you determine that there is enough free disk space, no malware is present, and the hardware components are functioning normally. What should be the NEXT step to improve the workstation's performance?
Defragment the hard drive
Update the OS with the latest patches and service packs
Run the disk cleanup utility
Add more RAM to the system