Download Hirens BootCD... there are several programs that will rebuild the MBR.. A must CD to have in your collection!

Hirens BootCD

   Information
MBR (Master Boot Record) Tools

- BellaVista 1.1.0.47: Formerly BCD Editor with lots of options to configure Windows for a developer (Windows Freeware).
- Boot Partition 2.60: add Partition in the Windows NT/2000/XP Multi-boot loader (Dos Freeware).
- BootFix Utility: Run this utility if you get 'Invalid system disk' message (Dos Freeware).
- BootICE 0.78: a boot sector manipulation utility (Windows Freeware).
- BootSect 6.0.6: Boot Sector Manipulation Tool, This tool replaces FixFAT.exe and FixNTFS.exe (Windows Freeware).
- DiskMan 4.2: all in one tool for cmos, bios, bootrecord and more (Windows/Dos Freeware).
- Grub4Dos installer 1.1: an universal boot loader GRUB for DOS installer (Windows Freeware).
- HDHacker 1.4: Load/Save/View MBR and BootSector from a physical/logical drive (Windows Freeware).
- MBR SAVE / RESTORE 2.1: BootSave and BootRest tools to save / restore MBR (Dos Freeware).
- MBR Utility 1.05: to manipulate a drive's master boot record (MBR) via the command line (Windows/Dos Freeware).
- MBRTool 2.3.200: backup, verify, restore, edit, refresh, remove, display, re-write and more (Dos Freeware).
- MBRWizard 3.0.65: Directly update and modify the Master Boot Record (Windows/Dos Freeware).
- MBRWork 1.08: a utility to perform some common and uncommon MBR functions (Dos Freeware).
- MbrFix 1.3: to backup, restore, fix the boot code in the MBR (Windows/Dos Freeware).
- MemDisk 4.02: to allow booting legacy operating systems, floppy images, hard disk images and some ISO images (Linux Freeware).
- PLoP Boot Manager 5.0.10: a small program to boot different operating systems harddisk, floppy, CD/DVD or from USB, it can boot from an USB/CD/DVD even without BIOS support (Linux Freeware).
- Smart Boot Manager 3.7.1: a multi boot manager (Dos Freeware).
- grub4dos 2010-08-04: an universal boot loader based on GNU GRUB, can boot off DOS/LINUX or via Windows boot manager/syslinux/lilo or from MBR/CD, builtin BIOS disk emulation (Linux Freeware).
- isolinux 4.02: a boot loader for Linux/i386 that operates off ISO 9660/El Torito CD-ROMs in 'no emulation' mode