How to reboot window xp 2005 without cd

[schmmed]

i need help on how to reboot a windows XP 2005. the menu bar is different than usual.

 

[hang-the-9]

You may want to reword what you want to do. "Reboot" means turn off the PC and back on. You maybe mean Re-install, or Re-image? And why do you want to do a re-install of the system because the menu bar is different? How about some details?