My notebook computer used to start up very quickly, but one day it dramatically slowed down. I did not change anything. Now, instead of taking 15 seconds to get through the boot screen, it takes 2 min. I have run Spyware detector and Sophos Anti-Virus and found nothing (with the latest updates). My hard drive is about 85% free. I have recently reinstalled windows, and it took a week to put all of my stuff back on. I really do not have the time to do this again. My laptop has a 2.13 GHz processor and 1024 mb of memory. I have run all of the Dell Diagnostics and every test passed.