Ubuntu GNU GRUB setiings

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http://askubuntu.com – I'm not the kind of user with programming skills, so I don't know much about configuring grub with commands. My problem is that I have 8 or 9 starting options in grub menu, and I would like them to be just the 2, being my operating systems. I have windows 7 and ubuntu 12.4. How can I delete the rest of the options? Thank you! (HowTos)