grub problem

[anipparadox]

hi. i have a problem. before this i have two window. window 7 and ubuntu natty. and then i accidently delete pastition for ubuntu. after that when i boot my pc 2 window 7. i cant get it. when i boot, it show

error : unknown filesystem.
grub rescue>

what can i do?? i need help.this is urgent. i cant use my laptop. how to fix it??

[mutinystudios]

Okay, dont panic. I think this will help LINK (http://www.linuxforums.org/forum/linux-tutorials-howtos-reference-material/9398-solving-boot-problems-grub-2nd-edition.html)

[Rubi1200]

If you deleted the Ubuntu partition, you need to restore the Windows bootloader:
http://ubuntuforums.org/showthread.php?t=1014708