I think you mean you want to decrease
boot times lol.
Anyway, booting is pretty much dependent on the hard drive speed. There's not much you can do other than:
-Buy a really fast hard drive solely for your operating system
-Buy 2 cheaper fast drives and set them up in RAID 0 and run your operating system on that
-Never shut down
-Send computer to sleep rather than shutting down
Or, you could buy a 2 or 4gb fast usb thumbdrive, though it will only shave a second or 2 at most off the boot time.
You can also limit the things that start-up automatically. Press windows+R (run) and type msconfig...take a screenshot of all the things in the startup tab and we'll tell you what you can turn off (less programs starting up means faster boot times, obviously)