A while ago I was struggling to obtain TeXworks working correctly with MikTeX 2.9.4521-x64 under Windows 7-x64; and after a marathon I managed to correctly match the appropriate extensions with the registry (it seemed all was going to be fine).
But, looking up on the main site of the editor, I found that a new version was released, and since I like to have programs with recent fixes I decided to apply for an even exchange; i.e. I wanted my TeXworks distribution simply and clearly replaced by the newest one inside the appropriate folder.
The comment of @karlkoeller is a valid help to get my first step done; but I have still some worries about installing a new version.
Where exactly has to be put in order to have the same folder structure as before?
Disclaimer: The below statements are based on personal deductions, so they may be lacking of accuracy/preciseness.
With a little explaining, I learnt that not one folder of TeXworks is placed inside my OS; so the main distribution of this program (installed using MikTeX
setup.exe), when removed, is called by the whatever-folders it may be stored in to be deleted (and the registry cleared).
End of deductions.
The main problem is that I do not know how this behaviour is like when I try to install a brand new/separated version of this program (I don't think that a reverse logic would apply). So what are the steps to follow?