I recently loaded fedora core in my system. But since i m amatuer i unable to figure that OS out How can i uninstall it if i want to without disturbing MBR ? Boot loader is GRUB.
Do you have any other OS loaded on your system?
If u are on Windows XP, run "diskmgmt.msc" (without quotes) and format the Linux Partitions.
Now boot from your Windows XP CD and from the recovery console, issue the command "FIXMBR".