Windows Installed 2 times

[Sylar]

Hello guys
I was having some problems with my windows xp so i looked for a new version with all updates
and when i wanted to install it everything was normal
but now each time i boot my laptop, it says there are 2 windows XP professionals installed
normally, when you install one, it deletes the other one
but now there are 2 versions installed on the same partition
so it takes double memory
just erasing the windows and user maps isn't enough i think
so is there any way to solve this?

any help is appreciated

[Mousetrap]

Pretty sure you're going to have to format the whole drive to clean that up.. this time make sure you delete everything, then install windows.

[Sylar]

noooo
just reinstalled all my programs and all my music back
aw...