Windows 7 Performance troubleshooter
Use the windows 7 performance trouble shooter to help solve problems when your windows 7 computer is running slow.
This helpful tool can be found in the control panel.
1. From clicking the start button, find and click the icon for the control panel.
2. Using the search box in the control panel, type in “troubleshooter” without the quotes
3. From there, click “Troubleshooting”
4. Under System & Security, find “Check for performance issues”