http://unetbootin.sourceforge.net/
This is a great tool that saved me. I stupidly formatted the drive that had Ubuntu on it and somehow GRUB got messed up. I used Unetbootin to create a USB boot drive with Super Grub Disk on it and went through the steps to boot straight to Windows.
No worries. I plan to go back to Ubuntu, but need to get this machine running Windows for work requirements.