100% Disk Usage even after refreshing the Dell T5810 PC. Tried performing most troubleshooting guides available in the internet - Disabled Windows Search, Background Intelligent Serivce, Superfetch; Increased Virtual Memory etc. Also checked with Crystal Info Hard Disk which shows the performance as "Good". Updated Dell Softwares, BIOS, Drivers and Windows. The 100% with hard drive is frequent and is disrupting the work of a user. Any suggestions where I might have overlooked in troubleshooting?