This is really quite a simple thing. But I have not been able to obtain concrete or detailed answers, even from a MS specialist. I just want to know as much detail as possible about how Windows 7, 64 bit , will work with the following scenarios. 1. If I were to create two completely new folders on C: drive (one for 64 bit and other for 32bit) and started installing all my applications in there, instead of the default Program Files or Program Files (x86), what exactly would happen? I know that it should work. But what happens to the Common Files and Application Data and other things? I know that each one of the default Program Files folders contains its own Common Files folder. So will I then deprive my installed apps from being able to use, and place files in, those folders properly? 2. What if instead my new folders were each a sub-directory within the default folders? In other words, if I make a new folder in Program Files and another new one in Program Files(x86), and I then install all my apps into these new sub-directories, then what happens? The same question as above. Will there be any issues? As to why I'm interested in this... well, mostly I'm curious about how Win7 works. But also this way it would be slightly more organized and nicer for me. I like doing something similar on my WinXP systems. Thank you!