To access:
From the Toolbox on the navigation panel, click Speed Up and then click Disk Defragmenter.
What it does:
This tool re-aligns scattered file fragments to boost drive efficiency and increase system speed by improving file access.
Check the boxes next to the hard drives you want optimized.
Click Analyze Now.
The graphic displays a visual representation of the condition of your drive(s).
Click Optimize now to defragment your drive(s).