Das habe ich zum Bootscreen gefunden (aber noch nicht getestet):

Zitat Zitat von liquidninjas.com
1. Enable New Boot screen in Vista

Tired of the pathetic boot screen in Vista? There is a new trick that will allow you to see what may be the new boot screen for Windows Vista. This new boot screen is still not what we have been expecting but is a move in the right direction compared to the white progress bar screen currently used.

Enable New Boot Screen:

1. Click on the start orb and type in "MSCONFIG" in the textbox.

2. Once the System Configuration tool loads, click on the Boot tab.

3. Under Boot Options check "No GUI Boot".

4. Hit OK and reboot to see the new screen.
Ich frage mich nur, warum du einen neuen Thread aufgemacht hast? Es gibt doch einen Windows Vista (Sammelthread) extra dafür . Bitte da weiter machen, danke.