After installing ccleaner, I cannot use it or uninstall it, and the folder is empty.
Have you used the “Advanced Install” options and put it in a different folder to standard?
(Probably not if it did make a “CCleaner” folder).
If you just left the standard options then where did you get the installler from? Was it a CCleaner webpage, the “Builds” page, the Microsoft Store, somewhere else?
The ccleaner folder was indeed created, obtained from the ccleaner webpage
OK, It seems odd that it would create an empty folder.
I’m not sure just what happened but try an installer from the Builds page:
I suggest that you try the ‘Slim’ installer, 3rd one down.
It installs the same CCleaner but uses a slightly different install process.
PS. Are you using any AV appart from the built in Windows Security/Defender?
I uninstalled ccleaner using other methods, but thanks for your help.