This is a Windows problem and not a Linux one. You will need your Windows CD
to fix it. The file in question is used as part of the Windows boot process.
It goes missing in many different ways, so it is hard to know which one
caused it to happen for you. It likely happened when you used the partition
manager. If you adjusted the Windows drive size or moved it then it could be
the cause..

The fix can be found here: http://www.computerhope.com/issues/ch000465.htm

There is no problem with grub. You need to fix Windows first. All grub does
is point to Windows. Once Windows is restored then grub shoudl work as
intended.