I am having a failing HDD on my dad's computer. Is there software that does quick and dirty way to copy a HDD image to a new HDD? It has a Windows 7 installation, but the HDDs are definitely different.
Seagate and Western Digital both have free versions of Acronis True Image available for free for their hard drives, but each requires at least one of their HDD's to be present to use it.
I didn't understand the "dirty" way, but, yes, there are softwares like Acronis True Image, Norton Ghost and others that will help you in your task.
I would suggest using Acronis.