Vista - Speed up Vista Bootup - Bypass Unused Hardware

At each bootup your Windows, all the hardware you have attached must be detected and initialized by the BIOS. Logically the more hardware you have, the longer bootup time your Windows will have. So if there are any device/hardware attached to your computer that you don't need on a regular basis you need to disable them and improve your boot up time!

Method:

Go to Start » Control Panel » Device Manager. Here you'll find all devices that you have installed on your PC. From here you can select and disable any device you don't use. To do this simply right click on the device and select Disable.