linux - Unable to boot Windows XP after installing ubuntu 10.10

I have ubuntu 8.10 & Windows XP installed on my PC. I formatted the C:\ partition and installed a new fresh copy of Win XP.

After that I was not able to login to ubuntu 8.10. It is clear that Win XP overwrote the MBR.

I tried to re-install the boot loader (Grub) again by boot ubuntu 10.10 CD. Finally, I was able to boot both ubuntu version 8.10 and 10.10. However, I was not able to boot Win XP.

There is an entry in grun menu of ubuntu 10.10 specific for WinXP, but when I press enter to boot Windows I get back to grub menu.

Any idea?

Answer

edit your grub.conf you will find windows xp grub menu and put this

title windows xp

root (hd0,1)
savedefault
makeactive
chainloader +1

check this link http://www.cyberciti.biz/faq/grubconf-for-windows-vista-or-xp-dual-boot/