EasyCleaner
is a small program which searches Windows' registry for
entries that are pointing nowhere. Deleting these
entries will speed your computer up. But as you already
might know, deleting entries from registry can be
dangerous for your computer, so it is wise to make a
backup of your registry. It also lets you delete all
kinds of unnecessary files like temps, backups, etc. You
can search for duplicate files and you can view some
intresting info about your disk space usage and deleting
invalid shortcuts from start-menu is possible as well.