computerhakk said:registry cleaner?
it'll clean up what other programs left behind during uninstallation.
or if u know well enough about registries, u can use windows built in registry editor.
and to be able to log everything that is changed on ur computer.. meaning when ur not there? or u being the sole user?
apj101 said:regmon and filemon may give you the functionality you are after
http://www.sysinternals.com/Utilities/Regmon.html
http://www.sysinternals.com/Utilities/Filemon.html