Need to delete GRUB in Dual boot Laptop
 

I have Lenova 550 Laptop with 4 GB ram,
installed with Windows Vista Service pack 1.
C: Win - VISTA
D: data disk.
On Other partition in installed Fedora

I was frustrated with Vista's performances and wanted to switch over to UBUNTU. To format the disk and to instal Ubuntu i was taking a backup of my data disk, I merged the free disk space and then I rebooted the laptop, but now the VISTA OS is not loading. As i have not taken all of my data BACKUP, i need to bring back the VISTA and then backup data disk and then instal UBUNTU totally.

Now the system stops at GRUB> prompt only.
I tried to enter command REBOOT, and BOOT with partitions (hd0,1), (hd0,2), (hd0,3) ...

Only these partitions are shown when TAB is
entered.

But still it shows as not a valid partition.

I don't have a recover CD/DVD.

Any advice on how I can recover/start the Win-Vista so that I can take full backup of my data disk ?

-Ashok

Yes
Download super grub2 disk, it's very small, burn it to a CD and boot the CD. Select the default setting "detect any OS", when a list of systems appears in a few seconds, select the one you want to boot and it will boot it.

Get bootable windows disk from here :

Above one works, but in cast it doesn't the other disk links.
Burn the iso on cd.

Boot from cd and at the command prompt enter the command :