So i thought about this for a while and if i put my hard drive with windows 7 in another computer will all the data and windows 7 be on that computer when i set it up. ( i do not know that much about stuff like this).
No.. If you have Windows 7 on that Hard drive that your planning to install and you put it in a different machine that the one it came in it can cause some conflicting issues. If you plan to do that you need to reformat the drive then install win7 or win8.