There is nothing worse than a windows operating system that struggles to open the start menu. When you need to save user data such as my documents and and favorites etc before reformat and reinstall windows but it takes 10 minutes to open my computer! Use a bootable operating system like Kanotix or Knoppix, two Linux os's that boot from a cd. Booting these os's takes a minute or two and it auto configures all your hardware and most the times connects you to the internet. On the desktop the hard drive will appear, use a stick drive to copy over the essential files from documents and setting. (you must change the stickdrive to be writable) This saves the aggravation of a highly infected windows. Reformat collect 100 and pass go!