I am not able to install windows vista ultimate from my prebuild recovery disk. I am having a HP pavilion laptop since upgrading it to windows vista i am not able to terminate any processes any application from task manager. My friends had suggested me to reinstall vista. I have tried booting from recovery disk and it starts with the applications window but it doesn't proceed further. So I am here to know what might be causing that? Along with that i also like to know other ways of installing windows vista, if anyone is having any suggestion or information regarding this issue then input it freely. Any suggestion will be greatly appreciated.