Why am I receiving 2 OS options after Backup / Recovery

I'm trying to image a computer from another computer that only shows 1 OS option, but when I recover it on the new computer it shows an option for "Windows 7" or "Windows Vista / Windows Server 2008 / Windows 7." Why would this be happening? Everything loads fine on the 3 different HP computers I tried it on, but now I tried a slightly different HP model and now it won't boot. It will just start the windows starting up logo then 3 seconds in it will make it look like its going to boot into windows, but restarts the computer. Thank you in advance.