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So, after learning that in order to boot into Ubuntu from a usb drive, I had to go into my bios and change the boot setting from UEFI to Legacy, I managed to install Ubuntu 13.04. Now, when I restart my laptop, it pops up the GRUB menu thing, and I can load Ubuntu no problem. But if I try to select Windows, I get an error saying windows can't be booted, and I need the recovery disc to repair this. but, since I don't have one, I thought it'd be a good idea to look around the boot settings again. Changing the boot settings from Legacy back to UEFI lets me boot into windows normally, but there is no option to get into Ubuntu unless I change it back to Legacy, which locks me out of Windows again. My question is, how can I make these options bot available to me without having to mash f2 to get into the bios every time I want to change my OS? Thank you in advance.