grub

[Squiz]

Ive got 1 x 20gb hd. the first partition was 100mb (/boot), the second is a 14gb (vfat) partition, the third and 4th are / and /swap. i was trying to get grub to work wen i think i installed grub to the vfat hd. Now whenever i boot using the windows bootloader it says grub and stops. Ive deleted the 3 linux partitions and it still does it. is there a way to get rid of grub of the vfat partition without formating it?   -Squiz-