delete an os

[Agraj_]

i have installed windows 8.1 and already windows xp is existing . now i want to delete windows xp . can anyone help me please ?

 

[hang-the-9]

Are you saying you now have a dual boot system with Windows 8 and XP and you want to remove the XP option? If you just installed Windows 8, the cleanest way would be to just re-install 8 and delete the existing disk partition during setup through advanced disk options.