Can't install Windows XP from Ubuntu

[Auden]

Hey, before i start, i just like to say: If this is the wrong section, then i'm sorry, because i don't know exactly where it should be.

Anyways, my brother installed Windows 7 recently on the computer, and i don't want it. And i don't want it. And i can't format the computer because i've lost the discs for formatting. So i tried installing XP from ubuntu using the software WineHQ (It let's me open .exe files). But when i press install button, it gives me this error:

I've made a partition of my HDD, there are three of them: Windows 7, XP And ubuntu. And the XP Installer is placed in the XP HDD. How do i fix this problem?

[Blade_Jones]

And i can't format the computer because i've lost the discs for formatting.

Connect that thing to another computer as a slave drive and you can format anything. Zero wipe it with Kill Disk or Nuke and Boot if you have to.

I've never heard of "installing Windows from Ubuntu". You install Windows from a Windows CD.