|It sounds like you have many things running in the background. Use task manager or download Process Explorer from microsoft to see what is running. Uninstall, or just remove them from start menu so they do not start with windows, only when you want them.|
If this is a recent 'off-lease' as it indicates above, you might consider formatting and reinstalling windows and the programs you need for a much cleaner machine.
Also see similar posts 'related posts' on this page for many options.