I've reinstalled Windows 7 again today and this time I want to keep my computer a little cleaner as before I had so much crap left over from programs I'd tested over time. Will a sandbox help me to achieve this? My vague understanding is that using a sandbox will stop programs writing to the registry, adding processes and the like which is ultimately what I want to avoid this time around, I didn't have a major problem before but up until lately I've been a very 'clean' user and it bugs me having all those remnants on my system.