I couldn't find an open thread for Wise Registry Cleaner, so I thought I'd open one. I'm not a big user of any registry cleaner, but I occasionally run a portable version of a cleaner to highlight and identify program leftovers, including services and redundant firewall rules. Wise Registry Cleaner is a free, light and uncluttered option. It is also available in portable format. There is a Pro version, but the only thing that Pro offers is the ability to clean all accounts as opposed to current user account for the free version. I also like Wise Registry Cleaner, as it doesn't try to be a Swiss Army Knife, although it does have a System Tuneup and Registry Defrag tab, which I don't use. Wise Registry Cleaner offers the user either a Fast, Deep or Custom Area scan. Fast is all I ever usually use. If required, you can set up a scheduled automatic registry clean. I don't use one often enough to need that. You can also set it to make an automatic registry backup before cleaning, although I have never needed to restore it. As a registry cleaner, I find it to be very safe.