Microsoft, itself, also used to make a registry cleaner called regclean.exe.īasically, uninstallers sometimes are poorly written, and that sometimes creates errors in your operating system that show popup errors or blue screens. I chose it because it does work as advertised and is in good standing with Microsoft. I've used PC HealthBoost with success on a few slow PCs. Before XP I used to re-install Windows every 6 months. If your windows system has lots of strange bugs that are due to registry problems you might be better served by re-installing. assuming your computer boots properly after the cleaning.

Hopefully a good registry cleaner backs up all its changes so that you can easily restore your old registry. Not only that, but deleting stuff from the registry can break things in subtle or hard-to-fix ways. But if you are not seeing problems and are just looking for speed you are probably wasting your time.

The only time a registry cleaner could be useful is if a program was not uninstalled properly in this case you might have some specific problem such as a broken file association.

only loading what's needed) and other techniques. Other programs aren't going to care and Windows can handle the memory usage just fine by paging (i.e. It doesn't matter if some game left its config options in there. The registry is a huge database optimized for speed.

Broken registry cleaner