One day I restarted my computer and found out that Ubuntu 12.04 would not load. It would come to the dot prompt with no graphics. Windows 7 was loading OK though.
From Windows 7, I navigated to grub folder and it was empty. Next time I restarted windows, I got the blue screen reporting system failure. I tried to fix Windows with no luck, so I had to reinstall Windows using Factory Default options.
After reinstalling Windows I started Ubuntu from the 12.04 CD(try Ubuntu) and ran Boot Repair from the terminal. The process was completed successfully. I restarted the computer, but I have the option to startup with windows only.
I am providing Boot Repair results http://paste.ubuntu.com/6635305/as recommended hoping to find a way to restore my Ubuntu.