Prova con BOOTVIS, per capire cosa fa più che per ''ottimizzare''
Riporto un microscopico estratto di una guida dal sito in firma, si chiama Tweaking companion for windows XP.
Bootvis è scaricabile
qui
--- Copyright (c) 2007 Koroush Ghazi
To analyze your system with Bootvis, run the program and go to the Trace menu, then selecNext Boot + Driver Delays. Let Bootvis reboot the system, and on rebooting wait patiently for Bootvis to pop back up when it's finished analyzing.
It will display a graph that shows the various startup components laid out sequentially in time shares. If you want to identify which programs are associated with particular applications or drivers, consult the Microsoft Configuration Utility section for more details.
To optimize your bootup procedure using Bootvis, first go to your \Windows\Prefetch folder and delete the entire contents. Then start Bootvis, go to the Trace menu and select Optimize System. Once again let Bootvis reboot and wait for it to restart after the reboot. It will say Optimizing System for a while. Once this is done you can reboot your system and observe that your bootup times will now be much faster. Ideally any time you install new drivers or add new pieces of hardware to your system you should redo the entire Bootvis procedure to maintain an optimal startup time.
--- Copyright (c) 2007 Koroush Ghazi