I have successfully installed Ubuntu 14.04.2 LTS on my HP Compaq Laptop with UEFI, keeping my Windows installation.
I rebooted and was prompted if I wanted to boot Windows, Ubuntu or something like settings or more options.
I chose the last option and then chose to continue booting. The computer booted with Windows. I restarted the PC and it booted with Windows instead of prompting.
I'd really appreciate your help.