I'm trying to set up a dual boot for Windows 7 and Ubuntu 13.04. Windows 7 was already installed on my computer. Then, I shrunk the C:/ hard drive partition. Then, I used a USB flash drive to install Ubuntu 13.04 alongside Windows 7. The installation completed succesfully. Also, there now exists hard drive partition(s?) for Ubuntu. I do not have any other operating systems than Windows 7 and Ubuntu 13.04.
However, when I restarted my computer (after the successful installation) my computer acts as if Ubuntu isn't there. It just starts up into Windows. And if I restart it again and again, it still starts up into Windows. If I make is start up from the USB flash drive, and choose to install Ubuntu alongside my current operating systems, then it wants me to make a second Ubuntu. How can I boot from Ubuntu?
I've tried going into 'choose hardware to boot from'. The only options are my hard disk (which boots into Windows) and my pendrive (which if I boot from it, it just wants me to install another Ubuntu). How can I boot into my successfully installed Ubuntu?
I'm using 64-bit Ubuntu and 64-bit Windows 7 Home Premium. Hardware involved are 8GB RAM, 64-bit Operating System, Intel(R) Core(TM) i5-3210M CPU @ 2.50GHz, HP Pavilion g4 Notebook PC.
By the way, I used persistence Ubuntu in the USB flash drive although I know that it's not supposed to work. I used LinuxLive USBCreator 2.8.23 to 'create' the USB flashdrive.