I know there are already several instances of this problem but I just don't find a similar issue as mine so pardon for being redundant.I am new to Ubuntu but I very much like to understand the whole thing about it.
I installed Ubuntu 12.04 from WUBI on my Existing Windows 7 OS. I have 2 partitions C: and D: What I did was select D: as where the Ubuntu be installed and give it free space. The installation went fine then then I rebooted my machine. Surprisingly it did not go to the boot selection screen, It just went straight to Windows 7.
What I did is to install EasyBCD and found out that there is no entry for Ubuntu in the Bootloader only for Windows 7.
I am not really quite familiar in using one of these. I can start with whatever everyone will post here for answer and I will gladly try them.