I installed Ubuntu 12.04 immediately after installing Windows 8 on my Dell laptop. The installation was successful. I installed Ubuntu to entirely different partition with swap area. And made the remaining harddisk free space. But on restarting it directly got into Win 8 without showing the grub. What should I do? Whether to reinstall grub from live usb or something else? I need to know whether Win 8 Secure Boot and UEFI cause problems for installing of Ubuntu?