I have installed Windows 7 over Ubuntu 12.04 (on a different partition) and since I have installed Windows 7 as the last step, GRUB did not start and Windows 7 booted automatically.
In order to solve this problem, I had installed EasyBCD and added second partition and everything was okay, but I had 2 GRUB screens.
The first GRUB screen included Windows 7 and Linux Nero Start, and I could have accessed Ubuntu had I chose the Linux Nero Start entry (which included Ubuntu and Windows 7).
In the process of trying to eliminate the other GRUB screen, I deleted the Windows 7 GRUB screen on EasyBCD by accident, and now I cannot boot Windows 7 despite it being visible on GRUB.
If I choose Ubuntu, everything is ok, but if I try to choose the Windows 7 entry, the same GRUB menu screen boots again.
Can you please help me with my problem?