You can use the uninstall module - it just runs the uninstall function that came with the program you are uninstalling - same as Windows does.
The links are here in blue - just click on them: Glary Utilities CCleaner - Home
If you really want to use a registry cleaner
- the registry clean module in Glary is safer - don't use the registry defragger
module - there are no free registry defraggers that work properly on 7 yet.
The programs are very easy to use.
Just click the module you want to use ( I have the Pro version - the free version is very similar):