If Windows 8 was preinstalled on your laptop you will need to get into bios on your laptop and turn off UEFI Secure Boot and enable "Legacy" boot.
Installing a new OS can sometimes be a complicated process especially if windows doesn't have network or wireless drivers for your particular network card baked into the OS. What I would do is not touch your current HDD and just give it a go with the new SSD and post back here with any problems you might have.
SR-71 the steps in the link are for when you are trying to do a clean install of your OS on your current HDD onto a new SSD, right? I'm installing an OEM onto a brand new SSD (keeping the Win8 OS on the current HDD).
Guys I'm inside the setup utility and under the boot menu, it will not allow me to select secure boot to enable it or disable it. When the I press the down arrow key, it goes straight down to 1. Windows Boot Manager