[I'm reposting this from a thread I also just started on PortableApps in order to get as much opinions as possible.]The main reason I use portable apps is to keep my computer running as fast as possible. So far for the majority of software I use I've managed to find a portable version or at least a suitable portable alternative. But I also use many programs that aren't portable, and I thought that I would have to install all those to my computer. After some googling I discovered UniExtract, and I'm quite relieved that it works most of the time.
I'm also aware that using this method doesn't prevent registry entries being made, settings being stored to various locations on the computer, etc. I don't really care about the settings aspect, but what I do worry about is whether the mess in the registry will eventually slow the computer down. Can/will this happen? Speed/performance is my main concern, as the majority of my work is media-related (imaging programs, video-editing, 3D, etc).
Side-note: does running programs such as CCleaner help in this regard?
