Stop Ubuntu From Booting at Start?

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http://askubuntu.com – All right. So, I have a slight problem here. The matter is that I have a Dual-Boot HP laptop, with Windows 7 Home Premium and Ubuntu 12.04 installed. I messed up a little with Windows and I had to restore my sistem to factory configurations by using a backup disc I created using the manager. But when the Recovery Manager finishes copying all the files to the HD, it tells me that it has to reboot the machine SEVERAL TIMES in order to get the default OS and drivers installed. But when it first reboots, it automatically boots into the GRUB manager and tells me to select an OS to boot from, A (HowTos)