Now double click on Administrative Tools
Then double click on Computer Management
Then click one time on Disk Defragmentor over to the left
You then can Analyze by clicking the Analyze button towards the bottom of the screen
Once the analysis is done...I can't remember if it ask you if you want to Defragment then or not...if it don't then you can click the Defragment button next to the Analyze button...once this is done you'll be out of commission for a while