where does grub exist on partitions

[mrhellboy86]

Hi
I installed ubuntu on my internal hard disk
I experienced a problem with Grub
and I just formatted all the Ubuntu Partitions and convert their format to NTFS to restore my windows (I have a backup)
but now despite of I format all the Ubuntu's partitions but in the boot time, the grub exist
and the grub apear
I want to know where does grub exist?
I installed ubuntu on the dual booter situation and it was ubuntu 9.10

[x33a]

Take a look here:

http://www.google.co.in/search?q=restore+windows+mbr&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:en-US:official&client=firefox-a