toshiba qosmio vista cannot pass progress bar the bo

Hello there,
I installed the windows vista in my Laptop Qosmio, My original SO was Media Center 2005. In fact, the installation finished correctly, but when the windows started does not pass from the boot progress screen.
I ran the Microsoft Windows Vista Upgrade Advisor and every was ok.
What is the problem?

(If setup becomes non-responsive), do a cold boot, Start the computer, when the Windows Boot Manager is displayed, select Windows Setup press F8 on your keyboard and setup should continue and finish up. -- -- Andre Windows Connected | http://www.windowsconnected.com Extended64 | http://www.extended64.com Blog | http://www.extended64.com/blogs/andre http://spaces.msn.com/members/adacosta
"Vista cannot pass the boot progress bar." <Vista cannot pass the boot progress bar.@discussions.microsoft.com> wrote in message

Hello there,
I installed the windows vista in my Laptop Qosmio, My original SO was Media Center 2005. In fact, the installation finished correctly, but when the windows started does not pass from the boot progress screen.
I ran the Microsoft Windows Vista Upgrade Advisor and every was ok.
What is the problem?