Run Defrag to improve performance
Information stored on your hard drive becomes fragmented over time and slows down your machine. To defrag your drive, simply open "My Computer" and right-click on the C: drive. Then select Properties and click on the Tools tab. Click the Defragment Now button and then click the Defragment button in the Disk Defragmenter window. Depending on the size of your hard drive and how much space you've used, Defrag may take a few minutes or maybe an hour or more but your machine will run faster once it's complete!