Ethnic Vagina Finder
The Great Paper Chaser
Takes about 15-20 minutes to fix the MBR without destroying all your data. In my experience, if your MBR gets corrupted, it's more than likely due to incumbent HDD failure.
unfortunately I didn't know it was the MBR until after the fact. I had a copy of Window's 8 but I said fukk it and installed Ubuntu. When I was done I got that grub error as soon as I restarted and immediately knew it was the MBR. I was able to fix it in less than 10 min. All of my important docs were backed up with dropbox so my biggest loss was movies, music and pirated software. Now.. I have to learn Ubuntu all over again until I decided to get a mac.